45021415 has 16 divisors (see below), whose sum is σ = 55863648. Its totient is φ = 34805376.

The previous prime is 45021407. The next prime is 45021463. The reversal of 45021415 is 51412054.

It is a cyclic number.

It is not a de Polignac number, because 45021415 - 2³ = 45021407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 29409 + ... + 30901.

It is an arithmetic number, because the mean of its divisors is an integer number (3491478).

Almost surely, 2^45021415 is an apocalyptic number.

45021415 is a deficient number, since it is larger than the sum of its proper divisors (10842233).

45021415 is a wasteful number, since it uses less digits than its factorization.

45021415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 45021415 is about 6709.7999225014. The cubic root of 45021415 is about 355.7457443678.

Adding to 45021415 its reverse (51412054), we get a palindrome (96433469).

The spelling of 45021415 in words is "forty-five million, twenty-one thousand, four hundred fifteen".