123161234 has 16 divisors (see below), whose sum is σ = 216840768. Its totient is φ = 51356592.

The previous prime is 123161189. The next prime is 123161239. The reversal of 123161234 is 432161321.

It is not an unprimeable number, because it can be changed into a prime (123161239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118364 + ... + 119399.

It is an arithmetic number, because the mean of its divisors is an integer number (13552548).

Almost surely, 2^123161234 is an apocalyptic number.

123161234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

123161234 is a deficient number, since it is larger than the sum of its proper divisors (93679534).

123161234 is a wasteful number, since it uses less digits than its factorization.

123161234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237809.

The product of its digits is 864, while the sum is 23.

The square root of 123161234 is about 11097.8031159325. The cubic root of 123161234 is about 497.5361912343.

The spelling of 123161234 in words is "one hundred twenty-three million, one hundred sixty-one thousand, two hundred thirty-four".