157272751 has 4 divisors (see below), whose sum is σ = 158214672. Its totient is φ = 156330832.

The previous prime is 157272737. The next prime is 157272767.

157272751 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157272751 - 2⁷ = 157272623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157272751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157272851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470710 + ... + 471043.

It is an arithmetic number, because the mean of its divisors is an integer number (39553668).

Almost surely, 2^157272751 is an apocalyptic number.

157272751 is a deficient number, since it is larger than the sum of its proper divisors (941921).

157272751 is an equidigital number, since it uses as much as digits as its factorization.

157272751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941920.

The product of its digits is 34300, while the sum is 37.

The square root of 157272751 is about 12540.8433129515. The cubic root of 157272751 is about 539.7812911753.

The spelling of 157272751 in words is "one hundred fifty-seven million, two hundred seventy-two thousand, seven hundred fifty-one".