45215427 has 16 divisors (see below), whose sum is σ = 64737792. Its totient is φ = 27968640.

The previous prime is 45215411. The next prime is 45215441. The reversal of 45215427 is 72451254.

It is not a de Polignac number, because 45215427 - 2⁴ = 45215411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45215394 and 45215403.

It is not an unprimeable number, because it can be changed into a prime (45215477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2623 + ... + 9864.

It is an arithmetic number, because the mean of its divisors is an integer number (4046112).

Almost surely, 2^45215427 is an apocalyptic number.

45215427 is a deficient number, since it is larger than the sum of its proper divisors (19522365).

45215427 is a wasteful number, since it uses less digits than its factorization.

45215427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12578.

The product of its digits is 11200, while the sum is 30.

The square root of 45215427 is about 6724.2417416390. The cubic root of 45215427 is about 356.2560203353.

The spelling of 45215427 in words is "forty-five million, two hundred fifteen thousand, four hundred twenty-seven".