157070845 has 4 divisors (see below), whose sum is σ = 188485020. Its totient is φ = 125656672.

The previous prime is 157070843. The next prime is 157070897. The reversal of 157070845 is 548070751.

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

It can be written as a sum of positive squares in 2 ways, for example, as 40819321 + 116251524 = 6389^2 + 10782^2 .

It is a cyclic number.

It is not a de Polignac number, because 157070845 - 2¹ = 157070843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157070843) 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, 15707080 + ... + 15707089.

It is an arithmetic number, because the mean of its divisors is an integer number (47121255).

Almost surely, 2^157070845 is an apocalyptic number.

It is an amenable number.

157070845 is a deficient number, since it is larger than the sum of its proper divisors (31414175).

157070845 is an equidigital number, since it uses as much as digits as its factorization.

157070845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31414174.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 157070845 is about 12532.7907905622. The cubic root of 157070845 is about 539.5502027166.

The spelling of 157070845 in words is "one hundred fifty-seven million, seventy thousand, eight hundred forty-five".