123499070 has 16 divisors (see below), whose sum is σ = 224797680. Its totient is φ = 48844224.

The previous prime is 123499049. The next prime is 123499073. The reversal of 123499070 is 70994321.

It is a self number, because there is not a number n which added to its sum of digits gives 123499070.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123499073) 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, 68492 + ... + 70271.

It is an arithmetic number, because the mean of its divisors is an integer number (14049855).

Almost surely, 2^123499070 is an apocalyptic number.

123499070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123499070 is a deficient number, since it is larger than the sum of its proper divisors (101298610).

123499070 is a wasteful number, since it uses less digits than its factorization.

123499070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138859.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 123499070 is about 11113.0135426895. The cubic root of 123499070 is about 497.9906962128.

The spelling of 123499070 in words is "one hundred twenty-three million, four hundred ninety-nine thousand, seventy".