75801631 has 2 divisors, whose sum is σ = 75801632. Its totient is φ = 75801630.

The previous prime is 75801613. The next prime is 75801673. The reversal of 75801631 is 13610857.

Together with previous prime (75801613) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75801631 - 2¹³ = 75793439 is a prime.

It is a super-2 number, since 2×75801631² = 11491774524520322, 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 = 75801593 and 75801602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75801731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37900815 + 37900816.

It is an arithmetic number, because the mean of its divisors is an integer number (37900816).

Almost surely, 2^75801631 is an apocalyptic number.

75801631 is a deficient number, since it is larger than the sum of its proper divisors (1).

75801631 is an equidigital number, since it uses as much as digits as its factorization.

75801631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 75801631 is about 8706.4132109612. The cubic root of 75801631 is about 423.2135039490.

The spelling of 75801631 in words is "seventy-five million, eight hundred one thousand, six hundred thirty-one".