123151623 has 32 divisors (see below), whose sum is σ = 195735552. Its totient is φ = 67392000.

The previous prime is 123151601. The next prime is 123151669. The reversal of 123151623 is 326151321.

It is not a de Polignac number, because 123151623 - 2¹² = 123147527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123151593 and 123151602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123156623) 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, 64815 + ... + 66687.

It is an arithmetic number, because the mean of its divisors is an integer number (6116736).

Almost surely, 2^123151623 is an apocalyptic number.

123151623 is a deficient number, since it is larger than the sum of its proper divisors (72583929).

123151623 is a wasteful number, since it uses less digits than its factorization.

123151623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015.

The product of its digits is 1080, while the sum is 24.

The square root of 123151623 is about 11097.3700938556. The cubic root of 123151623 is about 497.5232489998.

The spelling of 123151623 in words is "one hundred twenty-three million, one hundred fifty-one thousand, six hundred twenty-three".