45840631 has 2 divisors, whose sum is σ = 45840632. Its totient is φ = 45840630.

The previous prime is 45840629. The next prime is 45840649. The reversal of 45840631 is 13604854.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45840631 - 2¹ = 45840629 is a prime.

It is a super-2 number, since 2×45840631² = 4202726900956322, which contains 22 as substring.

Together with 45840629, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 45840593 and 45840602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45843631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22920315 + 22920316.

It is an arithmetic number, because the mean of its divisors is an integer number (22920316).

Almost surely, 2^45840631 is an apocalyptic number.

45840631 is a deficient number, since it is larger than the sum of its proper divisors (1).

45840631 is an equidigital number, since it uses as much as digits as its factorization.

45840631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 45840631 is about 6770.5709508135. The cubic root of 45840631 is about 357.8905208136.

The spelling of 45840631 in words is "forty-five million, eight hundred forty thousand, six hundred thirty-one".