149210028 has 36 divisors (see below), whose sum is σ = 411459048. Its totient is φ = 45215040.

The previous prime is 149209981. The next prime is 149210053. The reversal of 149210028 is 820012941.

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

It is a junction number, because it is equal to n+sod(n) for n = 149209983 and 149210010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188001 + ... + 188792.

It is an arithmetic number, because the mean of its divisors is an integer number (11429418).

Almost surely, 2^149210028 is an apocalyptic number.

149210028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

149210028 is an abundant number, since it is smaller than the sum of its proper divisors (262249020).

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

149210028 is a wasteful number, since it uses less digits than its factorization.

149210028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376814 (or 376809 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 149210028 is about 12215.1556682672. The cubic root of 149210028 is about 530.3948973390.

Adding to 149210028 its reverse (820012941), we get a palindrome (969222969).

It can be divided in two parts, 1492100 and 28, that added together give a triangular number (1492128 = T₁₇₂₇).

The spelling of 149210028 in words is "one hundred forty-nine million, two hundred ten thousand, twenty-eight".