1463131273 has 4 divisors (see below), whose sum is σ = 1510329088. Its totient is φ = 1415933460.

The previous prime is 1463131259. The next prime is 1463131279. The reversal of 1463131273 is 3721313641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3721313641 = 3209 ⋅1159649.

It is a cyclic number.

It is not a de Polignac number, because 1463131273 - 2⁹ = 1463130761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 47197783 = 1463131273 / (1 + 4 + 6 + 3 + 1 + 3 + 1 + 2 + 7 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1463131279) 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, 23598861 + ... + 23598922.

It is an arithmetic number, because the mean of its divisors is an integer number (377582272).

Almost surely, 2^1463131273 is an apocalyptic number.

It is an amenable number.

1463131273 is a deficient number, since it is larger than the sum of its proper divisors (47197815).

1463131273 is an equidigital number, since it uses as much as digits as its factorization.

1463131273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47197814.

The product of its digits is 9072, while the sum is 31.

The square root of 1463131273 is about 38250.8989828997. The cubic root of 1463131273 is about 1135.2576340766.

The spelling of 1463131273 in words is "one billion, four hundred sixty-three million, one hundred thirty-one thousand, two hundred seventy-three".