1502423231 has 2 divisors, whose sum is σ = 1502423232. Its totient is φ = 1502423230.

The previous prime is 1502423189. The next prime is 1502423239. The reversal of 1502423231 is 1323242051.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1502423231 is a prime.

It is a super-2 number, since 2×1502423231² = 4514551130096958722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1502423197 and 1502423206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1502423239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 751211615 + 751211616.

It is an arithmetic number, because the mean of its divisors is an integer number (751211616).

Almost surely, 2^1502423231 is an apocalyptic number.

1502423231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1502423231 is an equidigital number, since it uses as much as digits as its factorization.

1502423231 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1502423231 is about 38761.1046153228. The cubic root of 1502423231 is about 1145.3303346957.

Adding to 1502423231 its reverse (1323242051), we get a palindrome (2825665282).

The spelling of 1502423231 in words is "one billion, five hundred two million, four hundred twenty-three thousand, two hundred thirty-one".