157228701 has 12 divisors (see below), whose sum is σ = 243865152. Its totient is φ = 89844888.

The previous prime is 157228697. The next prime is 157228703. The reversal of 157228701 is 107822751.

It is not a de Polignac number, because 157228701 - 2² = 157228697 is a prime.

It is a super-4 number, since 4×157228701⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157228703) 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 11 ways as a sum of consecutive naturals, for example, 534645 + ... + 534938.

It is an arithmetic number, because the mean of its divisors is an integer number (20322096).

Almost surely, 2^157228701 is an apocalyptic number.

It is an amenable number.

157228701 is a deficient number, since it is larger than the sum of its proper divisors (86636451).

157228701 is a wasteful number, since it uses less digits than its factorization.

157228701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069600 (or 1069593 counting only the distinct ones).

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

The square root of 157228701 is about 12539.0869284809. The cubic root of 157228701 is about 539.7308912893.

The spelling of 157228701 in words is "one hundred fifty-seven million, two hundred twenty-eight thousand, seven hundred one".