45457997 has 8 divisors (see below), whose sum is σ = 50534400. Its totient is φ = 40607280.

The previous prime is 45457991. The next prime is 45458003. The reversal of 45457997 is 79975454.

45457997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (45457991) and next prime (45458003).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45457997 - 2⁴ = 45457981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45457991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55997 + ... + 56802.

It is an arithmetic number, because the mean of its divisors is an integer number (6316800).

Almost surely, 2^45457997 is an apocalyptic number.

It is an amenable number.

45457997 is a deficient number, since it is larger than the sum of its proper divisors (5076403).

45457997 is a wasteful number, since it uses less digits than its factorization.

45457997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112843.

The product of its digits is 1587600, while the sum is 50.

The square root of 45457997 is about 6742.2545932351. The cubic root of 45457997 is about 356.8919607059.

The spelling of 45457997 in words is "forty-five million, four hundred fifty-seven thousand, nine hundred ninety-seven".