1504142231 has 4 divisors (see below), whose sum is σ = 1504224192. Its totient is φ = 1504060272.

The previous prime is 1504142177. The next prime is 1504142243. The reversal of 1504142231 is 1322414051.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1504142231 is a prime.

It is a super-2 number, since 2×1504142231² = 4524887702155314722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1504142197 and 1504142206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1504142281) 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, 635 + ... + 54851.

It is an arithmetic number, because the mean of its divisors is an integer number (376056048).

Almost surely, 2^1504142231 is an apocalyptic number.

1504142231 is a deficient number, since it is larger than the sum of its proper divisors (81961).

1504142231 is an equidigital number, since it uses as much as digits as its factorization.

1504142231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81960.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1504142231 is about 38783.2725669199. The cubic root of 1504142231 is about 1145.7669787350.

Adding to 1504142231 its reverse (1322414051), we get a palindrome (2826556282).

The spelling of 1504142231 in words is "one billion, five hundred four million, one hundred forty-two thousand, two hundred thirty-one".