1244196631 has 4 divisors (see below), whose sum is σ = 1244463264. Its totient is φ = 1243930000.

The previous prime is 1244196623. The next prime is 1244196647. The reversal of 1244196631 is 1366914421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1244196631 - 2³ = 1244196623 is a prime.

It is a super-2 number, since 2×1244196631² = 3096050513183500322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244196671) 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, 126190 + ... + 135691.

It is an arithmetic number, because the mean of its divisors is an integer number (311115816).

Almost surely, 2^1244196631 is an apocalyptic number.

1244196631 is a deficient number, since it is larger than the sum of its proper divisors (266633).

1244196631 is an equidigital number, since it uses as much as digits as its factorization.

1244196631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266632.

The product of its digits is 31104, while the sum is 37.

The square root of 1244196631 is about 35273.1715472255. The cubic root of 1244196631 is about 1075.5476945188.

The spelling of 1244196631 in words is "one billion, two hundred forty-four million, one hundred ninety-six thousand, six hundred thirty-one".