45138451 has 8 divisors (see below), whose sum is σ = 47915280. Its totient is φ = 42375168.

The previous prime is 45138439. The next prime is 45138461. The reversal of 45138451 is 15483154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45138451 - 2¹³ = 45130259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45138421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3955 + ... + 10291.

It is an arithmetic number, because the mean of its divisors is an integer number (5989410).

Almost surely, 2^45138451 is an apocalyptic number.

45138451 is a deficient number, since it is larger than the sum of its proper divisors (2776829).

45138451 is a wasteful number, since it uses less digits than its factorization.

45138451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6773.

The product of its digits is 9600, while the sum is 31.

The square root of 45138451 is about 6718.5155354438. The cubic root of 45138451 is about 356.0537387841.

The spelling of 45138451 in words is "forty-five million, one hundred thirty-eight thousand, four hundred fifty-one".