45145951 has 4 divisors (see below), whose sum is σ = 46602304. Its totient is φ = 43689600.

The previous prime is 45145943. The next prime is 45145963. The reversal of 45145951 is 15954154.

It is a happy number.

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 45145951 - 2³ = 45145943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45145921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 728130 + ... + 728191.

It is an arithmetic number, because the mean of its divisors is an integer number (11650576).

Almost surely, 2^45145951 is an apocalyptic number.

45145951 is a deficient number, since it is larger than the sum of its proper divisors (1456353).

45145951 is a wasteful number, since it uses less digits than its factorization.

45145951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456352.

The product of its digits is 18000, while the sum is 34.

The square root of 45145951 is about 6719.0736712734. The cubic root of 45145951 is about 356.0734577827.

The spelling of 45145951 in words is "forty-five million, one hundred forty-five thousand, nine hundred fifty-one".