123772027 has 4 divisors (see below), whose sum is σ = 123888880. Its totient is φ = 123655176.

The previous prime is 123772021. The next prime is 123772069. The reversal of 123772027 is 720277321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123772027 - 2⁷ = 123771899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123772027.

It is not an unprimeable number, because it can be changed into a prime (123772021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56823 + ... + 58960.

It is an arithmetic number, because the mean of its divisors is an integer number (30972220).

Almost surely, 2^123772027 is an apocalyptic number.

123772027 is a deficient number, since it is larger than the sum of its proper divisors (116853).

123772027 is a wasteful number, since it uses less digits than its factorization.

123772027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116852.

The product of its (nonzero) digits is 8232, while the sum is 31.

The square root of 123772027 is about 11125.2877266163. The cubic root of 123772027 is about 498.3573117274.

The spelling of 123772027 in words is "one hundred twenty-three million, seven hundred seventy-two thousand, twenty-seven".