73662131 has 2 divisors, whose sum is σ = 73662132. Its totient is φ = 73662130.

The previous prime is 73662109. The next prime is 73662137. The reversal of 73662131 is 13126637.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73662131 - 2⁶ = 73662067 is a prime.

It is a super-2 number, since 2×73662131² = 10852219086922322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 73662094 and 73662103.

It is not a weakly prime, because it can be changed into another prime (73662137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36831065 + 36831066.

It is an arithmetic number, because the mean of its divisors is an integer number (36831066).

Almost surely, 2^73662131 is an apocalyptic number.

73662131 is a deficient number, since it is larger than the sum of its proper divisors (1).

73662131 is an equidigital number, since it uses as much as digits as its factorization.

73662131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 29.

The square root of 73662131 is about 8582.6645629431. The cubic root of 73662131 is about 419.1937120139.

Adding to 73662131 its reverse (13126637), we get a palindrome (86788768).

The spelling of 73662131 in words is "seventy-three million, six hundred sixty-two thousand, one hundred thirty-one".