149202280 has 32 divisors (see below), whose sum is σ = 343896840. Its totient is φ = 58224640.

The previous prime is 149202259. The next prime is 149202283. The reversal of 149202280 is 82202941.

It can be written as a sum of positive squares in 4 ways, for example, as 42328036 + 106874244 = 6506^2 + 10338^2 .

It is a super-2 number, since 2×149202280² = 44522640714396800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (149202283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43849 + ... + 47128.

Almost surely, 2^149202280 is an apocalyptic number.

149202280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149202280 is an abundant number, since it is smaller than the sum of its proper divisors (194694560).

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

149202280 is a wasteful number, since it uses less digits than its factorization.

149202280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91029 (or 91025 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 149202280 is about 12214.8385171479. The cubic root of 149202280 is about 530.3857166094.

The spelling of 149202280 in words is "one hundred forty-nine million, two hundred two thousand, two hundred eighty".