45140051 has 4 divisors (see below), whose sum is σ = 49243704. Its totient is φ = 41036400.

The previous prime is 45140033. The next prime is 45140063. The reversal of 45140051 is 15004154.

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

It is a cyclic number.

It is not a de Polignac number, because 45140051 - 2¹⁰ = 45139027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45140021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2051810 + ... + 2051831.

It is an arithmetic number, because the mean of its divisors is an integer number (12310926).

Almost surely, 2^45140051 is an apocalyptic number.

45140051 is a deficient number, since it is larger than the sum of its proper divisors (4103653).

45140051 is a wasteful number, since it uses less digits than its factorization.

45140051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103652.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 45140051 is about 6718.6346083114. The cubic root of 45140051 is about 356.0579456870.

The spelling of 45140051 in words is "forty-five million, one hundred forty thousand, fifty-one".