123627145 has 16 divisors (see below), whose sum is σ = 162498960. Its totient is φ = 89872384.

The previous prime is 123627143. The next prime is 123627149. The reversal of 123627145 is 541726321.

It can be written as a sum of positive squares in 8 ways, for example, as 1281424 + 122345721 = 1132^2 + 11061^2 .

It is a cyclic number.

It is not a de Polignac number, because 123627145 - 2¹ = 123627143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123627143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22612 + ... + 27541.

It is an arithmetic number, because the mean of its divisors is an integer number (10156185).

Almost surely, 2^123627145 is an apocalyptic number.

It is an amenable number.

123627145 is a deficient number, since it is larger than the sum of its proper divisors (38871815).

123627145 is a wasteful number, since it uses less digits than its factorization.

123627145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50204.

The product of its digits is 10080, while the sum is 31.

The square root of 123627145 is about 11118.7744378596. The cubic root of 123627145 is about 498.1627842113.

The spelling of 123627145 in words is "one hundred twenty-three million, six hundred twenty-seven thousand, one hundred forty-five".