149274240 has 64 divisors (see below), whose sum is σ = 475817760. Its totient is φ = 39805952.

The previous prime is 149274233. The next prime is 149274247. The reversal of 149274240 is 42472941.

It is an interprime number because it is at equal distance from previous prime (149274233) and next prime (149274247).

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (149274247) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 36954 + ... + 40793.

Almost surely, 2^149274240 is an apocalyptic number.

149274240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

149274240 is an abundant number, since it is smaller than the sum of its proper divisors (326543520).

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

149274240 is an equidigital number, since it uses as much as digits as its factorization.

149274240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77769 (or 77757 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 149274240 is about 12217.7837597496. The cubic root of 149274240 is about 530.4709709409.

The spelling of 149274240 in words is "one hundred forty-nine million, two hundred seventy-four thousand, two hundred forty".