123891262 has 8 divisors (see below), whose sum is σ = 202731192. Its totient is φ = 56314200.

The previous prime is 123891239. The next prime is 123891307. The reversal of 123891262 is 262198321.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2815689 + ... + 2815732.

It is an arithmetic number, because the mean of its divisors is an integer number (25341399).

Almost surely, 2^123891262 is an apocalyptic number.

123891262 is a deficient number, since it is larger than the sum of its proper divisors (78839930).

123891262 is a wasteful number, since it uses less digits than its factorization.

123891262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5631434.

The product of its digits is 10368, while the sum is 34.

The square root of 123891262 is about 11130.6451744721. The cubic root of 123891262 is about 498.5172901559.

The spelling of 123891262 in words is "one hundred twenty-three million, eight hundred ninety-one thousand, two hundred sixty-two".