45151399 has 4 divisors (see below), whose sum is σ = 45222480. Its totient is φ = 45080320.

The previous prime is 45151363. The next prime is 45151409. The reversal of 45151399 is 99315154.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99315154 = 2 ⋅49657577.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45151399 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 (45151339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34579 + ... + 35860.

It is an arithmetic number, because the mean of its divisors is an integer number (11305620).

Almost surely, 2^45151399 is an apocalyptic number.

45151399 is a deficient number, since it is larger than the sum of its proper divisors (71081).

45151399 is an equidigital number, since it uses as much as digits as its factorization.

45151399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71080.

The product of its digits is 24300, while the sum is 37.

The square root of 45151399 is about 6719.4790720710. The cubic root of 45151399 is about 356.0877802939.

The spelling of 45151399 in words is "forty-five million, one hundred fifty-one thousand, three hundred ninety-nine".