151591456 has 12 divisors (see below), whose sum is σ = 298445742. Its totient is φ = 75795712.

The previous prime is 151591399. The next prime is 151591463. The reversal of 151591456 is 654195151.

It can be written as a sum of positive squares in only one way, i.e., 106915600 + 44675856 = 10340^2 + 6684^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2368585 + ... + 2368648.

Almost surely, 2^151591456 is an apocalyptic number.

151591456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

151591456 is a deficient number, since it is larger than the sum of its proper divisors (146854286).

151591456 is an equidigital number, since it uses as much as digits as its factorization.

151591456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737243 (or 4737235 counting only the distinct ones).

The product of its digits is 27000, while the sum is 37.

The square root of 151591456 is about 12312.2482106234. The cubic root of 151591456 is about 533.2017605994.

The spelling of 151591456 in words is "one hundred fifty-one million, five hundred ninety-one thousand, four hundred fifty-six".