45000556121 has 4 divisors (see below), whose sum is σ = 45035414544. Its totient is φ = 44965697700.

The previous prime is 45000556103. The next prime is 45000556157. The reversal of 45000556121 is 12165500054.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45000556121 - 2³⁴ = 27820686937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45000556171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17427275 + ... + 17429856.

It is an arithmetic number, because the mean of its divisors is an integer number (11258853636).

Almost surely, 2^45000556121 is an apocalyptic number.

It is an amenable number.

45000556121 is a deficient number, since it is larger than the sum of its proper divisors (34858423).

45000556121 is a wasteful number, since it uses less digits than its factorization.

45000556121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34858422.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 45000556121 in words is "forty-five billion, five hundred fifty-six thousand, one hundred twenty-one".