68574131 has 4 divisors (see below), whose sum is σ = 68594064. Its totient is φ = 68554200.

The previous prime is 68574101. The next prime is 68574161. The reversal of 68574131 is 13147586.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13147586 = 2 ⋅6573793.

It is an interprime number because it is at equal distance from previous prime (68574101) and next prime (68574161).

It is a cyclic number.

It is not a de Polignac number, because 68574131 - 2¹⁰ = 68573107 is a prime.

It is a super-2 number, since 2×68574131² = 9404822884810322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68574091 and 68574100.

It is not an unprimeable number, because it can be changed into a prime (68574101) 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, 3335 + ... + 12176.

It is an arithmetic number, because the mean of its divisors is an integer number (17148516).

Almost surely, 2^68574131 is an apocalyptic number.

68574131 is a deficient number, since it is larger than the sum of its proper divisors (19933).

68574131 is a wasteful number, since it uses less digits than its factorization.

68574131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19932.

The product of its digits is 20160, while the sum is 35.

The square root of 68574131 is about 8280.9498851279. The cubic root of 68574131 is about 409.3110201355.

The spelling of 68574131 in words is "sixty-eight million, five hundred seventy-four thousand, one hundred thirty-one".