68250131 has 4 divisors (see below), whose sum is σ = 71217552. Its totient is φ = 65282712.

The previous prime is 68250113. The next prime is 68250139. The reversal of 68250131 is 13105286.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68250131 - 2¹⁴ = 68233747 is a prime.

It is a super-2 number, since 2×68250131² = 9316160763034322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68250131.

It is not an unprimeable number, because it can be changed into a prime (68250139) 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, 1483676 + ... + 1483721.

It is an arithmetic number, because the mean of its divisors is an integer number (17804388).

Almost surely, 2^68250131 is an apocalyptic number.

68250131 is a deficient number, since it is larger than the sum of its proper divisors (2967421).

68250131 is a wasteful number, since it uses less digits than its factorization.

68250131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967420.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 68250131 is about 8261.3637494060. The cubic root of 68250131 is about 408.6653627438.

The spelling of 68250131 in words is "sixty-eight million, two hundred fifty thousand, one hundred thirty-one".