45499639 has 2 divisors, whose sum is σ = 45499640. Its totient is φ = 45499638.

The previous prime is 45499631. The next prime is 45499673. The reversal of 45499639 is 93699454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45499639 - 2³ = 45499631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45499592 and 45499601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45499631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22749819 + 22749820.

It is an arithmetic number, because the mean of its divisors is an integer number (22749820).

Almost surely, 2^45499639 is an apocalyptic number.

45499639 is a deficient number, since it is larger than the sum of its proper divisors (1).

45499639 is an equidigital number, since it uses as much as digits as its factorization.

45499639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1049760, while the sum is 49.

The square root of 45499639 is about 6745.3420224626. The cubic root of 45499639 is about 357.0009049348. Note that the first 3 decimals are identical.

The spelling of 45499639 in words is "forty-five million, four hundred ninety-nine thousand, six hundred thirty-nine".