10139423 has 20 divisors (see below), whose sum is σ = 12234768. Its totient is φ = 8396640.

The previous prime is 10139419. The next prime is 10139431. The reversal of 10139423 is 32493101.

It is not a de Polignac number, because 10139423 - 2² = 10139419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10139453) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 98390 + ... + 98492.

Almost surely, 2^10139423 is an apocalyptic number.

10139423 is a deficient number, since it is larger than the sum of its proper divisors (2095345).

10139423 is an frugal number, since it uses more digits than its factorization.

10139423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 10139423 is about 3184.2460646125. The cubic root of 10139423 is about 216.4401105887.

The spelling of 10139423 in words is "ten million, one hundred thirty-nine thousand, four hundred twenty-three".