67532131 has 2 divisors, whose sum is σ = 67532132. Its totient is φ = 67532130.

The previous prime is 67532111. The next prime is 67532159. The reversal of 67532131 is 13123576.

It is an a-pointer prime, because the next prime (67532159) can be obtained adding 67532131 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67532131 - 2⁹ = 67531619 is a prime.

It is a super-2 number, since 2×67532131² = 9121177434802322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67532131.

It is not a weakly prime, because it can be changed into another prime (67532111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33766065 + 33766066.

It is an arithmetic number, because the mean of its divisors is an integer number (33766066).

Almost surely, 2^67532131 is an apocalyptic number.

67532131 is a deficient number, since it is larger than the sum of its proper divisors (1).

67532131 is an equidigital number, since it uses as much as digits as its factorization.

67532131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 28.

The square root of 67532131 is about 8217.7935603178. The cubic root of 67532131 is about 407.2272373909.

The spelling of 67532131 in words is "sixty-seven million, five hundred thirty-two thousand, one hundred thirty-one".