45319999 has 2 divisors, whose sum is σ = 45320000. Its totient is φ = 45319998.

The previous prime is 45319991. The next prime is 45320003. The reversal of 45319999 is 99991354.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45319999 - 2³ = 45319991 is a prime.

It is a Chen prime.

45319999 is a modest number, since divided by 9999 gives 4531 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45319991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22659999 + 22660000.

It is an arithmetic number, because the mean of its divisors is an integer number (22660000).

Almost surely, 2^45319999 is an apocalyptic number.

45319999 is a deficient number, since it is larger than the sum of its proper divisors (1).

45319999 is an equidigital number, since it uses as much as digits as its factorization.

45319999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 393660, while the sum is 49.

The square root of 45319999 is about 6732.0129976107. The cubic root of 45319999 is about 356.5304526388.

The spelling of 45319999 in words is "forty-five million, three hundred nineteen thousand, nine hundred ninety-nine".