15380723 has 4 divisors (see below), whose sum is σ = 15632928. Its totient is φ = 15128520.

The previous prime is 15380693. The next prime is 15380731. The reversal of 15380723 is 32708351.

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 15380723 - 2¹⁴ = 15364339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15380753) 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, 126011 + ... + 126132.

It is an arithmetic number, because the mean of its divisors is an integer number (3908232).

Almost surely, 2^15380723 is an apocalyptic number.

15380723 is a deficient number, since it is larger than the sum of its proper divisors (252205).

15380723 is an equidigital number, since it uses as much as digits as its factorization.

15380723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252204.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 15380723 is about 3921.8264877478. The cubic root of 15380723 is about 248.6903404816.

The spelling of 15380723 in words is "fifteen million, three hundred eighty thousand, seven hundred twenty-three".