45121012154 has 4 divisors (see below), whose sum is σ = 67681518234. Its totient is φ = 22560506076.

The previous prime is 45121012141. The next prime is 45121012169.

It is a happy number.

45121012154 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 28349467129 + 16771545025 = 168373^2 + 129505^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11280253037 + ... + 11280253040.

Almost surely, 2^45121012154 is an apocalyptic number.

45121012154 is a deficient number, since it is larger than the sum of its proper divisors (22560506080).

45121012154 is a wasteful number, since it uses less digits than its factorization.

45121012154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22560506079.

The product of its (nonzero) digits is 1600, while the sum is 26.

It can be divided in two parts, 451210 and 12154, that added together give a palindrome (463364).

The spelling of 45121012154 in words is "forty-five billion, one hundred twenty-one million, twelve thousand, one hundred fifty-four".