1461407231 has 2 divisors, whose sum is σ = 1461407232. Its totient is φ = 1461407230.

The previous prime is 1461407201. The next prime is 1461407263. The reversal of 1461407231 is 1327041641.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1461407231 is a prime.

It is a super-2 number, since 2×1461407231² = 4271422189638174722, 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 = 1461407194 and 1461407203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1461407201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 730703615 + 730703616.

It is an arithmetic number, because the mean of its divisors is an integer number (730703616).

Almost surely, 2^1461407231 is an apocalyptic number.

1461407231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1461407231 is an equidigital number, since it uses as much as digits as its factorization.

1461407231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1461407231 is about 38228.3563732473. The cubic root of 1461407231 is about 1134.8115585643.

Adding to 1461407231 its reverse (1327041641), we get a palindrome (2788448872).

The spelling of 1461407231 in words is "one billion, four hundred sixty-one million, four hundred seven thousand, two hundred thirty-one".