250012157 has 2 divisors, whose sum is σ = 250012158. Its totient is φ = 250012156.

The previous prime is 250012123. The next prime is 250012159. The reversal of 250012157 is 751210052.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249039961 + 972196 = 15781^2 + 986^2 .

It is a cyclic number.

It is not a de Polignac number, because 250012157 - 2⁸ = 250011901 is a prime.

Together with 250012159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (250012159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125006078 + 125006079.

It is an arithmetic number, because the mean of its divisors is an integer number (125006079).

Almost surely, 2^250012157 is an apocalyptic number.

It is an amenable number.

250012157 is a deficient number, since it is larger than the sum of its proper divisors (1).

250012157 is an equidigital number, since it uses as much as digits as its factorization.

250012157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 250012157 is about 15811.7727342635. The cubic root of 250012157 is about 629.9707360221.

The spelling of 250012157 in words is "two hundred fifty million, twelve thousand, one hundred fifty-seven".