45199123 has 2 divisors, whose sum is σ = 45199124. Its totient is φ = 45199122.

The previous prime is 45199103. The next prime is 45199127. The reversal of 45199123 is 32199154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45199123 - 2²⁵ = 11644691 is a prime.

It is not a weakly prime, because it can be changed into another prime (45199127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22599561 + 22599562.

It is an arithmetic number, because the mean of its divisors is an integer number (22599562).

Almost surely, 2^45199123 is an apocalyptic number.

45199123 is a deficient number, since it is larger than the sum of its proper divisors (1).

45199123 is an equidigital number, since it uses as much as digits as its factorization.

45199123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 34.

The square root of 45199123 is about 6723.0293023309. The cubic root of 45199123 is about 356.2131950076.

The spelling of 45199123 in words is "forty-five million, one hundred ninety-nine thousand, one hundred twenty-three".