45215807 has 8 divisors (see below), whose sum is σ = 55650336. Its totient is φ = 35775072.

The previous prime is 45215803. The next prime is 45215851. The reversal of 45215807 is 70851254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45215807 - 2² = 45215803 is a prime.

It is a super-2 number, since 2×45215807² = 4088938405322498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45215803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248348 + ... + 248529.

It is an arithmetic number, because the mean of its divisors is an integer number (6956292).

Almost surely, 2^45215807 is an apocalyptic number.

45215807 is a deficient number, since it is larger than the sum of its proper divisors (10434529).

45215807 is a wasteful number, since it uses less digits than its factorization.

45215807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496897.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 45215807 is about 6724.2699975536. The cubic root of 45215807 is about 356.2570183495.

The spelling of 45215807 in words is "forty-five million, two hundred fifteen thousand, eight hundred seven".