123627945 has 32 divisors (see below), whose sum is σ = 226639872. Its totient is φ = 56371392.

The previous prime is 123627943. The next prime is 123627953. The reversal of 123627945 is 549726321.

It is not a de Polignac number, because 123627945 - 2¹ = 123627943 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123627943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47344 + ... + 49886.

It is an arithmetic number, because the mean of its divisors is an integer number (7082496).

Almost surely, 2^123627945 is an apocalyptic number.

123627945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123627945 is a deficient number, since it is larger than the sum of its proper divisors (103011927).

123627945 is a wasteful number, since it uses less digits than its factorization.

123627945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021.

The product of its digits is 90720, while the sum is 39.

The square root of 123627945 is about 11118.8104129893. The cubic root of 123627945 is about 498.1638587579.

The spelling of 123627945 in words is "one hundred twenty-three million, six hundred twenty-seven thousand, nine hundred forty-five".