73032131 has 2 divisors, whose sum is σ = 73032132. Its totient is φ = 73032130.

The previous prime is 73032109. The next prime is 73032149. The reversal of 73032131 is 13123037.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73032131 - 2¹⁸ = 72769987 is a prime.

It is a super-2 number, since 2×73032131² = 10667384316802322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (73032151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36516065 + 36516066.

It is an arithmetic number, because the mean of its divisors is an integer number (36516066).

Almost surely, 2^73032131 is an apocalyptic number.

73032131 is a deficient number, since it is larger than the sum of its proper divisors (1).

73032131 is an equidigital number, since it uses as much as digits as its factorization.

73032131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 73032131 is about 8545.8838630068. The cubic root of 73032131 is about 417.9952286109.

Adding to 73032131 its reverse (13123037), we get a palindrome (86155168).

The spelling of 73032131 in words is "seventy-three million, thirty-two thousand, one hundred thirty-one".