1381374501 has 16 divisors (see below), whose sum is σ = 2031892800. Its totient is φ = 829342080.

The previous prime is 1381374451. The next prime is 1381374551. The reversal of 1381374501 is 1054731831.

It is an interprime number because it is at equal distance from previous prime (1381374451) and next prime (1381374551).

It is not a de Polignac number, because 1381374501 - 2⁷ = 1381374373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381374551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 430351 + ... + 433548.

It is an arithmetic number, because the mean of its divisors is an integer number (126993300).

Almost surely, 2^1381374501 is an apocalyptic number.

It is an amenable number.

1381374501 is a deficient number, since it is larger than the sum of its proper divisors (650518299).

1381374501 is a wasteful number, since it uses less digits than its factorization.

1381374501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863956.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1381374501 is about 37166.8467992645. The cubic root of 1381374501 is about 1113.7057921615.

The spelling of 1381374501 in words is "one billion, three hundred eighty-one million, three hundred seventy-four thousand, five hundred one".