45351515 has 16 divisors (see below), whose sum is σ = 61952256. Its totient is φ = 31548000.

The previous prime is 45351511. The next prime is 45351547. The reversal of 45351515 is 51515354.

It is not a de Polignac number, because 45351515 - 2² = 45351511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45351511) 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 15 ways as a sum of consecutive naturals, for example, 16661 + ... + 19190.

It is an arithmetic number, because the mean of its divisors is an integer number (3872016).

Almost surely, 2^45351515 is an apocalyptic number.

45351515 is a deficient number, since it is larger than the sum of its proper divisors (16600741).

45351515 is a wasteful number, since it uses less digits than its factorization.

45351515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35890.

The product of its digits is 7500, while the sum is 29.

The square root of 45351515 is about 6734.3533468329. The cubic root of 45351515 is about 356.6130784873.

Adding to 45351515 its reverse (51515354), we get a palindrome (96866869).

The spelling of 45351515 in words is "forty-five million, three hundred fifty-one thousand, five hundred fifteen".