45215671 has 2 divisors, whose sum is σ = 45215672. Its totient is φ = 45215670.

The previous prime is 45215659. The next prime is 45215713. The reversal of 45215671 is 17651254.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45215671 is a prime.

It is a Chen prime.

It is equal to p_2730397 and since 45215671 and 2730397 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45215641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22607835 + 22607836.

It is an arithmetic number, because the mean of its divisors is an integer number (22607836).

Almost surely, 2^45215671 is an apocalyptic number.

45215671 is a deficient number, since it is larger than the sum of its proper divisors (1).

45215671 is an equidigital number, since it uses as much as digits as its factorization.

45215671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 31.

The square root of 45215671 is about 6724.2598849241. The cubic root of 45215671 is about 356.2566611661.

The spelling of 45215671 in words is "forty-five million, two hundred fifteen thousand, six hundred seventy-one".