1461231313 has 2 divisors, whose sum is σ = 1461231314. Its totient is φ = 1461231312.

The previous prime is 1461231301. The next prime is 1461231383. The reversal of 1461231313 is 3131321641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1460539089 + 692224 = 38217^2 + 832^2 .

It is a cyclic number.

It is not a de Polignac number, because 1461231313 - 2¹³ = 1461223121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1461231383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730615656 + 730615657.

It is an arithmetic number, because the mean of its divisors is an integer number (730615657).

Almost surely, 2^1461231313 is an apocalyptic number.

It is an amenable number.

1461231313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461231313 is an equidigital number, since it uses as much as digits as its factorization.

1461231313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 1461231313 is about 38226.0554203543. The cubic root of 1461231313 is about 1134.7660221374.

Adding to 1461231313 its reverse (3131321641), we get a palindrome (4592552954).

The spelling of 1461231313 in words is "one billion, four hundred sixty-one million, two hundred thirty-one thousand, three hundred thirteen".