45451599 has 4 divisors (see below), whose sum is σ = 60602136. Its totient is φ = 30301064.

The previous prime is 45451597. The next prime is 45451603. The reversal of 45451599 is 99515454.

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 45451599 - 2¹ = 45451597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45451599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45451597) 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, 7575264 + ... + 7575269.

It is an arithmetic number, because the mean of its divisors is an integer number (15150534).

Almost surely, 2^45451599 is an apocalyptic number.

45451599 is a deficient number, since it is larger than the sum of its proper divisors (15150537).

45451599 is a wasteful number, since it uses less digits than its factorization.

45451599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15150536.

The product of its digits is 162000, while the sum is 42.

The square root of 45451599 is about 6741.7801061737. The cubic root of 45451599 is about 356.8752162968.

The spelling of 45451599 in words is "forty-five million, four hundred fifty-one thousand, five hundred ninety-nine".