157861153 has 2 divisors, whose sum is σ = 157861154. Its totient is φ = 157861152.

The previous prime is 157861117. The next prime is 157861163. The reversal of 157861153 is 351168751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140944384 + 16916769 = 11872^2 + 4113^2 .

It is a cyclic number.

It is not a de Polignac number, because 157861153 - 2¹⁷ = 157730081 is a prime.

It is not a weakly prime, because it can be changed into another prime (157861163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78930576 + 78930577.

It is an arithmetic number, because the mean of its divisors is an integer number (78930577).

Almost surely, 2^157861153 is an apocalyptic number.

It is an amenable number.

157861153 is a deficient number, since it is larger than the sum of its proper divisors (1).

157861153 is an equidigital number, since it uses as much as digits as its factorization.

157861153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 37.

The square root of 157861153 is about 12564.2808389498. The cubic root of 157861153 is about 540.4536117622.

The spelling of 157861153 in words is "one hundred fifty-seven million, eight hundred sixty-one thousand, one hundred fifty-three".