45135551421 has 12 divisors (see below), whose sum is σ = 65586192672. Its totient is φ = 29910184776.

The previous prime is 45135551389. The next prime is 45135551437. The reversal of 45135551421 is 12415553154.

45135551421 is a `hidden beast` number, since 4 + 5 + 135 + 5 + 514 + 2 + 1 = 666.

It is not a de Polignac number, because 45135551421 - 2⁵ = 45135551389 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45135551521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15013651 + ... + 15016656.

It is an arithmetic number, because the mean of its divisors is an integer number (5465516056).

Almost surely, 2^45135551421 is an apocalyptic number.

It is an amenable number.

45135551421 is a deficient number, since it is larger than the sum of its proper divisors (20450641251).

45135551421 is a wasteful number, since it uses less digits than its factorization.

45135551421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30030480 (or 30030477 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

The spelling of 45135551421 in words is "forty-five billion, one hundred thirty-five million, five hundred fifty-one thousand, four hundred twenty-one".