15141231 has 24 divisors (see below), whose sum is σ = 25178400. Its totient is φ = 8588736.

The previous prime is 15141227. The next prime is 15141239. The reversal of 15141231 is 13214151.

It is not a de Polignac number, because 15141231 - 2² = 15141227 is a prime.

It is a super-2 number, since 2×15141231² = 458513752390722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15141239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8581 + ... + 10193.

It is an arithmetic number, because the mean of its divisors is an integer number (1049100).

Almost surely, 2^15141231 is an apocalyptic number.

15141231 is a deficient number, since it is larger than the sum of its proper divisors (10037169).

15141231 is a wasteful number, since it uses less digits than its factorization.

15141231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775 (or 1772 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 15141231 is about 3891.1734733882. The cubic root of 15141231 is about 247.3928032871.

Adding to 15141231 its reverse (13214151), we get a palindrome (28355382).

It can be divided in two parts, 15 and 141231, that added together give a triangular number (141246 = T₅₃₁).

The spelling of 15141231 in words is "fifteen million, one hundred forty-one thousand, two hundred thirty-one".