45815901 has 16 divisors (see below), whose sum is σ = 66261888. Its totient is φ = 28044800.

The previous prime is 45815899. The next prime is 45815909. The reversal of 45815901 is 10951854.

It is a cyclic number.

It is not a de Polignac number, because 45815901 - 2¹ = 45815899 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45815909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8865 + ... + 13046.

It is an arithmetic number, because the mean of its divisors is an integer number (4141368).

Almost surely, 2^45815901 is an apocalyptic number.

45815901 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

45815901 is a deficient number, since it is larger than the sum of its proper divisors (20445987).

45815901 is a wasteful number, since it uses less digits than its factorization.

45815901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21972.

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 45815901 is about 6768.7444182802. The cubic root of 45815901 is about 357.8261512472.

The spelling of 45815901 in words is "forty-five million, eight hundred fifteen thousand, nine hundred one".