45240647 has 2 divisors, whose sum is σ = 45240648. Its totient is φ = 45240646.

The previous prime is 45240623. The next prime is 45240661. The reversal of 45240647 is 74604254.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45240647 - 2⁶ = 45240583 is a prime.

It is a super-2 number, since 2×45240647² = 4093432281957218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45240607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22620323 + 22620324.

It is an arithmetic number, because the mean of its divisors is an integer number (22620324).

Almost surely, 2^45240647 is an apocalyptic number.

45240647 is a deficient number, since it is larger than the sum of its proper divisors (1).

45240647 is an equidigital number, since it uses as much as digits as its factorization.

45240647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 32.

The square root of 45240647 is about 6726.1167845942. The cubic root of 45240647 is about 356.3222448333.

The spelling of 45240647 in words is "forty-five million, two hundred forty thousand, six hundred forty-seven".