123227621157 has 64 divisors (see below), whose sum is σ = 178015034880. Its totient is φ = 75643392000.

The previous prime is 123227621147. The next prime is 123227621173. The reversal of 123227621157 is 751126722321.

It is not a de Polignac number, because 123227621157 - 2⁴ = 123227621141 is a prime.

It is a super-2 number, since 2×123227621157² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123227621137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37833073 + ... + 37836329.

It is an arithmetic number, because the mean of its divisors is an integer number (2781484920).

Almost surely, 2^123227621157 is an apocalyptic number.

It is an amenable number.

123227621157 is a deficient number, since it is larger than the sum of its proper divisors (54787413723).

123227621157 is a wasteful number, since it uses less digits than its factorization.

123227621157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3534.

The product of its digits is 70560, while the sum is 39.

The spelling of 123227621157 in words is "one hundred twenty-three billion, two hundred twenty-seven million, six hundred twenty-one thousand, one hundred fifty-seven".