123450679 has 4 divisors (see below), whose sum is σ = 134673480. Its totient is φ = 112227880.

The previous prime is 123450673. The next prime is 123450697. The reversal of 123450679 is 976054321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123450679 - 2³ = 123450671 is a prime.

It is a super-2 number, since 2×123450679² = 30480140291122082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123450671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5611384 + ... + 5611405.

It is an arithmetic number, because the mean of its divisors is an integer number (33668370).

Almost surely, 2^123450679 is an apocalyptic number.

123450679 is a deficient number, since it is larger than the sum of its proper divisors (11222801).

123450679 is a wasteful number, since it uses less digits than its factorization.

123450679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11222800.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 123450679 is about 11110.8361071523. The cubic root of 123450679 is about 497.9256446677.

The spelling of 123450679 in words is "one hundred twenty-three million, four hundred fifty thousand, six hundred seventy-nine".