1427312631 has 32 divisors (see below), whose sum is σ = 1996296192. Its totient is φ = 906272640.

The previous prime is 1427312617. The next prime is 1427312647. The reversal of 1427312631 is 1362137241.

It is a happy number.

It is not a de Polignac number, because 1427312631 - 2⁶ = 1427312567 is a prime.

It is a super-2 number, since 2×1427312631² = 4074442693224284322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427312651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1305321 + ... + 1306413.

It is an arithmetic number, because the mean of its divisors is an integer number (62384256).

Almost surely, 2^1427312631 is an apocalyptic number.

1427312631 is a deficient number, since it is larger than the sum of its proper divisors (568983561).

1427312631 is a wasteful number, since it uses less digits than its factorization.

1427312631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383.

The product of its digits is 6048, while the sum is 30.

The square root of 1427312631 is about 37779.7913043468. The cubic root of 1427312631 is about 1125.9169823441.

Adding to 1427312631 its reverse (1362137241), we get a palindrome (2789449872).

The spelling of 1427312631 in words is "one billion, four hundred twenty-seven million, three hundred twelve thousand, six hundred thirty-one".