149742280 has 16 divisors (see below), whose sum is σ = 336920220. Its totient is φ = 59896896.

The previous prime is 149742227. The next prime is 149742311. The reversal of 149742280 is 82247941.

It can be written as a sum of positive squares in 2 ways, for example, as 123343236 + 26399044 = 11106^2 + 5138^2 .

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 3 ways as a sum of consecutive naturals, for example, 1871739 + ... + 1871818.

Almost surely, 2^149742280 is an apocalyptic number.

149742280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149742280 is an abundant number, since it is smaller than the sum of its proper divisors (187177940).

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

149742280 is a wasteful number, since it uses less digits than its factorization.

149742280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743568 (or 3743564 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 149742280 is about 12236.9228158063. The cubic root of 149742280 is about 531.0248119649.

The spelling of 149742280 in words is "one hundred forty-nine million, seven hundred forty-two thousand, two hundred eighty".