157870633 has 2 divisors, whose sum is σ = 157870634. Its totient is φ = 157870632.

The previous prime is 157870621. The next prime is 157870649. The reversal of 157870633 is 336078751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98148649 + 59721984 = 9907^2 + 7728^2 .

It is an emirp because it is prime and its reverse (336078751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157870633 - 2²⁵ = 124316201 is a prime.

It is not a weakly prime, because it can be changed into another prime (157870663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78935316 + 78935317.

It is an arithmetic number, because the mean of its divisors is an integer number (78935317).

Almost surely, 2^157870633 is an apocalyptic number.

It is an amenable number.

157870633 is a deficient number, since it is larger than the sum of its proper divisors (1).

157870633 is an equidigital number, since it uses as much as digits as its factorization.

157870633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 157870633 is about 12564.6580932391. The cubic root of 157870633 is about 540.4644301250.

The spelling of 157870633 in words is "one hundred fifty-seven million, eight hundred seventy thousand, six hundred thirty-three".