149027220 has 36 divisors (see below), whose sum is σ = 452049780. Its totient is φ = 39740544.

The previous prime is 149027213. The next prime is 149027227. The reversal of 149027220 is 22720941.

149027220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (149027213) and next prime (149027227).

It can be written as a sum of positive squares in 2 ways, for example, as 40908816 + 108118404 = 6396^2 + 10398^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×149027220² = 44418224601856800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149027227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 413785 + ... + 414144.

Almost surely, 2^149027220 is an apocalyptic number.

149027220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149027220 is an abundant number, since it is smaller than the sum of its proper divisors (303022560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149027220 is a wasteful number, since it uses less digits than its factorization.

149027220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827944 (or 827939 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 149027220 is about 12207.6705394600. The cubic root of 149027220 is about 530.1782004311.

It can be divided in two parts, 14902 and 7220, that added together give a palindrome (22122).

The spelling of 149027220 in words is "one hundred forty-nine million, twenty-seven thousand, two hundred twenty".