1231461503 has 8 divisors (see below), whose sum is σ = 1238410320. Its totient is φ = 1224529920.

The previous prime is 1231461479. The next prime is 1231461509. The reversal of 1231461503 is 3051641321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231461503 - 2⁸ = 1231461247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231461509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155213 + ... + 162953.

It is an arithmetic number, because the mean of its divisors is an integer number (154801290).

Almost surely, 2^1231461503 is an apocalyptic number.

1231461503 is a deficient number, since it is larger than the sum of its proper divisors (6948817).

1231461503 is an equidigital number, since it uses as much as digits as its factorization.

1231461503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8617.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1231461503 is about 35092.1857825927. The cubic root of 1231461503 is about 1071.8654688304.

The spelling of 1231461503 in words is "one billion, two hundred thirty-one million, four hundred sixty-one thousand, five hundred three".