45720671 has 2 divisors, whose sum is σ = 45720672. Its totient is φ = 45720670.

The previous prime is 45720643. The next prime is 45720673. The reversal of 45720671 is 17602754.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45720671 - 2²² = 41526367 is a prime.

Together with 45720673, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45720673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22860335 + 22860336.

It is an arithmetic number, because the mean of its divisors is an integer number (22860336).

Almost surely, 2^45720671 is an apocalyptic number.

45720671 is a deficient number, since it is larger than the sum of its proper divisors (1).

45720671 is an equidigital number, since it uses as much as digits as its factorization.

45720671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 45720671 is about 6761.7062195869. The cubic root of 45720671 is about 357.5780610995.

Adding to 45720671 its sum of digits (32), we get a triangular number (45720703 = T₉₅₆₂).

The spelling of 45720671 in words is "forty-five million, seven hundred twenty thousand, six hundred seventy-one".