123257426 has 8 divisors (see below), whose sum is σ = 190850304. Its totient is φ = 59640660.

The previous prime is 123257423. The next prime is 123257441. The reversal of 123257426 is 624752321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 123257392 and 123257401.

It is not an unprimeable number, because it can be changed into a prime (123257423) 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, 993950 + ... + 994073.

It is an arithmetic number, because the mean of its divisors is an integer number (23856288).

Almost surely, 2^123257426 is an apocalyptic number.

123257426 is a deficient number, since it is larger than the sum of its proper divisors (67592878).

123257426 is a wasteful number, since it uses less digits than its factorization.

123257426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988056.

The product of its digits is 20160, while the sum is 32.

The square root of 123257426 is about 11102.1361007691. The cubic root of 123257426 is about 497.6656869245.

The spelling of 123257426 in words is "one hundred twenty-three million, two hundred fifty-seven thousand, four hundred twenty-six".