151772990 has 16 divisors (see below), whose sum is σ = 276009552. Its totient is φ = 60082944.

The previous prime is 151772989. The next prime is 151773019. The reversal of 151772990 is 99277151.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77264 + ... + 79203.

It is an arithmetic number, because the mean of its divisors is an integer number (17250597).

Almost surely, 2^151772990 is an apocalyptic number.

151772990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

151772990 is a deficient number, since it is larger than the sum of its proper divisors (124236562).

151772990 is a wasteful number, since it uses less digits than its factorization.

151772990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156571.

The product of its (nonzero) digits is 39690, while the sum is 41.

The square root of 151772990 is about 12319.6180947300. The cubic root of 151772990 is about 533.4145158538.

The spelling of 151772990 in words is "one hundred fifty-one million, seven hundred seventy-two thousand, nine hundred ninety".