67040131 has 4 divisors (see below), whose sum is σ = 67114000. Its totient is φ = 66966264.

The previous prime is 67040119. The next prime is 67040143. The reversal of 67040131 is 13104076.

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

It is an interprime number because it is at equal distance from previous prime (67040119) and next prime (67040143).

It is a cyclic number.

It is not a de Polignac number, because 67040131 - 2¹⁵ = 67007363 is a prime.

It is a super-2 number, since 2×67040131² = 8988758328994322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67040161) 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, 35556 + ... + 37393.

It is an arithmetic number, because the mean of its divisors is an integer number (16778500).

Almost surely, 2^67040131 is an apocalyptic number.

67040131 is a deficient number, since it is larger than the sum of its proper divisors (73869).

67040131 is an equidigital number, since it uses as much as digits as its factorization.

67040131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73868.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 67040131 is about 8187.8037958906. The cubic root of 67040131 is about 406.2358853952.

The spelling of 67040131 in words is "sixty-seven million, forty thousand, one hundred thirty-one".