45801491 has 2 divisors, whose sum is σ = 45801492. Its totient is φ = 45801490.

The previous prime is 45801479. The next prime is 45801517. The reversal of 45801491 is 19410854.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45801491 is a prime.

It is not a weakly prime, because it can be changed into another prime (45801391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22900745 + 22900746.

It is an arithmetic number, because the mean of its divisors is an integer number (22900746).

Almost surely, 2^45801491 is an apocalyptic number.

45801491 is a deficient number, since it is larger than the sum of its proper divisors (1).

45801491 is an equidigital number, since it uses as much as digits as its factorization.

45801491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 45801491 is about 6767.6798830914. The cubic root of 45801491 is about 357.7886328645.

The spelling of 45801491 in words is "forty-five million, eight hundred one thousand, four hundred ninety-one".