45678123 has 12 divisors (see below), whose sum is σ = 66142440. Its totient is φ = 30376896.

The previous prime is 45678119. The next prime is 45678151. The reversal of 45678123 is 32187654.

It is not a de Polignac number, because 45678123 - 2² = 45678119 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (45678323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2286 + ... + 9827.

It is an arithmetic number, because the mean of its divisors is an integer number (5511870).

Almost surely, 2^45678123 is an apocalyptic number.

45678123 is a deficient number, since it is larger than the sum of its proper divisors (20464317).

45678123 is a wasteful number, since it uses less digits than its factorization.

45678123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12538 (or 12535 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 45678123 is about 6758.5592399564. The cubic root of 45678123 is about 357.4671050633.

The spelling of 45678123 in words is "forty-five million, six hundred seventy-eight thousand, one hundred twenty-three".