157012171 has 2 divisors, whose sum is σ = 157012172. Its totient is φ = 157012170.

The previous prime is 157012159. The next prime is 157012183. The reversal of 157012171 is 171210751.

It is a balanced prime because it is at equal distance from previous prime (157012159) and next prime (157012183).

It is a cyclic number.

It is not a de Polignac number, because 157012171 - 2⁵ = 157012139 is a prime.

It is not a weakly prime, because it can be changed into another prime (157012111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78506085 + 78506086.

It is an arithmetic number, because the mean of its divisors is an integer number (78506086).

Almost surely, 2^157012171 is an apocalyptic number.

157012171 is a deficient number, since it is larger than the sum of its proper divisors (1).

157012171 is an equidigital number, since it uses as much as digits as its factorization.

157012171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 490, while the sum is 25.

The square root of 157012171 is about 12530.4497525029. The cubic root of 157012171 is about 539.4830111439.

The spelling of 157012171 in words is "one hundred fifty-seven million, twelve thousand, one hundred seventy-one".