157036181 has 2 divisors, whose sum is σ = 157036182. Its totient is φ = 157036180.

The previous prime is 157036153. The next prime is 157036211. The reversal of 157036181 is 181630751.

157036181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154504900 + 2531281 = 12430^2 + 1591^2 .

It is a cyclic number.

It is not a de Polignac number, because 157036181 - 2¹⁰ = 157035157 is a prime.

It is a super-2 number, since 2×157036181² = 49320724286129522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157036151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78518090 + 78518091.

It is an arithmetic number, because the mean of its divisors is an integer number (78518091).

Almost surely, 2^157036181 is an apocalyptic number.

It is an amenable number.

157036181 is a deficient number, since it is larger than the sum of its proper divisors (1).

157036181 is an equidigital number, since it uses as much as digits as its factorization.

157036181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 157036181 is about 12531.4077820491. The cubic root of 157036181 is about 539.5105086447.

The spelling of 157036181 in words is "one hundred fifty-seven million, thirty-six thousand, one hundred eighty-one".