75012631 has 2 divisors, whose sum is σ = 75012632. Its totient is φ = 75012630.

The previous prime is 75012617. The next prime is 75012643. The reversal of 75012631 is 13621057.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 75012631 - 2⁷ = 75012503 is a prime.

It is a super-2 number, since 2×75012631² = 11253789619084322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75012596 and 75012605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75019631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37506315 + 37506316.

It is an arithmetic number, because the mean of its divisors is an integer number (37506316).

Almost surely, 2^75012631 is an apocalyptic number.

75012631 is a deficient number, since it is larger than the sum of its proper divisors (1).

75012631 is an equidigital number, since it uses as much as digits as its factorization.

75012631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 75012631 is about 8660.9832582681. The cubic root of 75012631 is about 421.7400055397.

Adding to 75012631 its reverse (13621057), we get a palindrome (88633688).

The spelling of 75012631 in words is "seventy-five million, twelve thousand, six hundred thirty-one".