250126161 has 4 divisors (see below), whose sum is σ = 333501552. Its totient is φ = 166750772.

The previous prime is 250126159. The next prime is 250126171. The reversal of 250126161 is 161621052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 250126161 - 2¹ = 250126159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (250126171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41687691 + ... + 41687696.

It is an arithmetic number, because the mean of its divisors is an integer number (83375388).

Almost surely, 2^250126161 is an apocalyptic number.

It is an amenable number.

250126161 is a deficient number, since it is larger than the sum of its proper divisors (83375391).

250126161 is an equidigital number, since it uses as much as digits as its factorization.

250126161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83375390.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 250126161 is about 15815.3773587607. The cubic root of 250126161 is about 630.0664757267.

The spelling of 250126161 in words is "two hundred fifty million, one hundred twenty-six thousand, one hundred sixty-one".