45490997 has 8 divisors (see below), whose sum is σ = 50702400. Its totient is φ = 40561344.

The previous prime is 45490993. The next prime is 45491003. The reversal of 45490997 is 79909454.

45490997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45490997 - 2² = 45490993 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 (45490993) 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, 70097 + ... + 70742.

It is an arithmetic number, because the mean of its divisors is an integer number (6337800).

Almost surely, 2^45490997 is an apocalyptic number.

It is an amenable number.

45490997 is a deficient number, since it is larger than the sum of its proper divisors (5211403).

45490997 is a wasteful number, since it uses less digits than its factorization.

45490997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140875.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 45490997 is about 6744.7014018413. The cubic root of 45490997 is about 356.9783011132.

The spelling of 45490997 in words is "forty-five million, four hundred ninety thousand, nine hundred ninety-seven".