1373948631 has 48 divisors (see below), whose sum is σ = 2337154560. Its totient is φ = 768989760.

The previous prime is 1373948629. The next prime is 1373948633. The reversal of 1373948631 is 1368493731.

1373948631 is a `hidden beast` number, since 1 + 3 + 7 + 3 + 9 + 4 + 8 + 631 = 666.

It is an interprime number because it is at equal distance from previous prime (1373948629) and next prime (1373948633).

It is not a de Polignac number, because 1373948631 - 2¹ = 1373948629 is a prime.

It is a super-2 number, since 2×1373948631² = 3775469681253548322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1373948633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55630 + ... + 76436.

It is an arithmetic number, because the mean of its divisors is an integer number (48690720).

Almost surely, 2^1373948631 is an apocalyptic number.

1373948631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1373948631 is a deficient number, since it is larger than the sum of its proper divisors (963205929).

1373948631 is a wasteful number, since it uses less digits than its factorization.

1373948631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20876 (or 20873 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 1373948631 is about 37066.8130677564. The cubic root of 1373948631 is about 1111.7065519589.

The spelling of 1373948631 in words is "one billion, three hundred seventy-three million, nine hundred forty-eight thousand, six hundred thirty-one".