15132443 has 4 divisors (see below), whose sum is σ = 15345648. Its totient is φ = 14919240.

The previous prime is 15132427. The next prime is 15132457. The reversal of 15132443 is 34423151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34423151 = 7 ⋅4917593.

It is a cyclic number.

It is not a de Polignac number, because 15132443 - 2⁴ = 15132427 is a prime.

It is a super-2 number, since 2×15132443² = 457981662296498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15132463) 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, 106496 + ... + 106637.

It is an arithmetic number, because the mean of its divisors is an integer number (3836412).

Almost surely, 2^15132443 is an apocalyptic number.

15132443 is a deficient number, since it is larger than the sum of its proper divisors (213205).

15132443 is an equidigital number, since it uses as much as digits as its factorization.

15132443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213204.

The product of its digits is 1440, while the sum is 23.

The square root of 15132443 is about 3890.0440871538. The cubic root of 15132443 is about 247.3449316025.

Adding to 15132443 its reverse (34423151), we get a palindrome (49555594).

The spelling of 15132443 in words is "fifteen million, one hundred thirty-two thousand, four hundred forty-three".