157272018 has 8 divisors (see below), whose sum is σ = 314544048. Its totient is φ = 52424004.

The previous prime is 157272007. The next prime is 157272019. The reversal of 157272018 is 810272751.

It is a sphenic number, since it is the product of 3 distinct primes.

157272018 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 157272018.

It is not an unprimeable number, because it can be changed into a prime (157272019) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 13105996 + ... + 13106007.

It is an arithmetic number, because the mean of its divisors is an integer number (39318006).

Almost surely, 2^157272018 is an apocalyptic number.

157272018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

157272018 is a wasteful number, since it uses less digits than its factorization.

157272018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26212008.

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 157272018 is about 12540.8140884075. The cubic root of 157272018 is about 539.7804525890.

The spelling of 157272018 in words is "one hundred fifty-seven million, two hundred seventy-two thousand, eighteen".