45029993 has 2 divisors, whose sum is σ = 45029994. Its totient is φ = 45029992.

The previous prime is 45029989. The next prime is 45030031. The reversal of 45029993 is 39992054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42863209 + 2166784 = 6547^2 + 1472^2 .

It is a cyclic number.

It is not a de Polignac number, because 45029993 - 2² = 45029989 is a prime.

It is equal to p_2719868 and since 45029993 and 2719868 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 45029993.

It is not a weakly prime, because it can be changed into another prime (45029903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22514996 + 22514997.

It is an arithmetic number, because the mean of its divisors is an integer number (22514997).

Almost surely, 2^45029993 is an apocalyptic number.

It is an amenable number.

45029993 is a deficient number, since it is larger than the sum of its proper divisors (1).

45029993 is an equidigital number, since it uses as much as digits as its factorization.

45029993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 45029993 is about 6710.4391063477. The cubic root of 45029993 is about 355.7683365291.

The spelling of 45029993 in words is "forty-five million, twenty-nine thousand, nine hundred ninety-three".