123956534 has 16 divisors (see below), whose sum is σ = 200587968. Its totient is φ = 57110592.

The previous prime is 123956533. The next prime is 123956543. The reversal of 123956534 is 435659321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123956533) 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, 12179 + ... + 19905.

It is an arithmetic number, because the mean of its divisors is an integer number (12536748).

Almost surely, 2^123956534 is an apocalyptic number.

123956534 is a deficient number, since it is larger than the sum of its proper divisors (76631434).

123956534 is a wasteful number, since it uses less digits than its factorization.

123956534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8359.

The product of its digits is 97200, while the sum is 38.

The square root of 123956534 is about 11133.5768735838. The cubic root of 123956534 is about 498.6048225809.

The spelling of 123956534 in words is "one hundred twenty-three million, nine hundred fifty-six thousand, five hundred thirty-four".