45678491 has 2 divisors, whose sum is σ = 45678492. Its totient is φ = 45678490.

The previous prime is 45678487. The next prime is 45678499. The reversal of 45678491 is 19487654.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45678491 - 2² = 45678487 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45678499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22839245 + 22839246.

It is an arithmetic number, because the mean of its divisors is an integer number (22839246).

Almost surely, 2^45678491 is an apocalyptic number.

45678491 is a deficient number, since it is larger than the sum of its proper divisors (1).

45678491 is an equidigital number, since it uses as much as digits as its factorization.

45678491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 44.

The square root of 45678491 is about 6758.5864646389. The cubic root of 45678491 is about 357.4680650236.

The spelling of 45678491 in words is "forty-five million, six hundred seventy-eight thousand, four hundred ninety-one".