15319423 has 4 divisors (see below), whose sum is σ = 17507920. Its totient is φ = 13130928.

The previous prime is 15319417. The next prime is 15319429. The reversal of 15319423 is 32491351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32491351 = 73 ⋅445087.

It is an interprime number because it is at equal distance from previous prime (15319417) and next prime (15319429).

It is a cyclic number.

It is not a de Polignac number, because 15319423 - 2⁵ = 15319391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15319391 and 15319400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15319429) 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, 1094238 + ... + 1094251.

It is an arithmetic number, because the mean of its divisors is an integer number (4376980).

Almost surely, 2^15319423 is an apocalyptic number.

15319423 is a deficient number, since it is larger than the sum of its proper divisors (2188497).

15319423 is an equidigital number, since it uses as much as digits as its factorization.

15319423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188496.

The product of its digits is 3240, while the sum is 28.

The square root of 15319423 is about 3914.0034491554. The cubic root of 15319423 is about 248.3595147789.

The spelling of 15319423 in words is "fifteen million, three hundred nineteen thousand, four hundred twenty-three".