15146223 has 4 divisors (see below), whose sum is σ = 20194968. Its totient is φ = 10097480.

The previous prime is 15146177. The next prime is 15146227. The reversal of 15146223 is 32264151.

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 15146223 - 2¹⁰ = 15145199 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15146193 and 15146202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15146227) 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, 2524368 + ... + 2524373.

It is an arithmetic number, because the mean of its divisors is an integer number (5048742).

Almost surely, 2^15146223 is an apocalyptic number.

15146223 is a deficient number, since it is larger than the sum of its proper divisors (5048745).

15146223 is an equidigital number, since it uses as much as digits as its factorization.

15146223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5048744.

The product of its digits is 1440, while the sum is 24.

The square root of 15146223 is about 3891.8148722672. The cubic root of 15146223 is about 247.4199884210.

The spelling of 15146223 in words is "fifteen million, one hundred forty-six thousand, two hundred twenty-three".