1381000959 has 48 divisors (see below), whose sum is σ = 2268520800. Its totient is φ = 802545408.

The previous prime is 1381000939. The next prime is 1381000969. The reversal of 1381000959 is 9590001831.

It is a happy number.

It is not a de Polignac number, because 1381000959 - 2¹² = 1380996863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381000919) 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, 863949 + ... + 865545.

It is an arithmetic number, because the mean of its divisors is an integer number (47260850).

Almost surely, 2^1381000959 is an apocalyptic number.

1381000959 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1381000959 is a deficient number, since it is larger than the sum of its proper divisors (887519841).

1381000959 is a wasteful number, since it uses less digits than its factorization.

1381000959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024 (or 2021 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 1381000959 is about 37161.8212551538. The cubic root of 1381000959 is about 1113.6053961687.

The spelling of 1381000959 in words is "one billion, three hundred eighty-one million, nine hundred fifty-nine", and thus it is an aban number.