1381911562 has 8 divisors (see below), whose sum is σ = 2073026592. Its totient is φ = 690902700.

The previous prime is 1381911547. The next prime is 1381911563. The reversal of 1381911562 is 2651191831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1381911563) 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 3 ways as a sum of consecutive naturals, for example, 30637 + ... + 60847.

It is an arithmetic number, because the mean of its divisors is an integer number (259128324).

Almost surely, 2^1381911562 is an apocalyptic number.

1381911562 is a deficient number, since it is larger than the sum of its proper divisors (691115030).

1381911562 is a wasteful number, since it uses less digits than its factorization.

1381911562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53084.

The product of its digits is 12960, while the sum is 37.

The square root of 1381911562 is about 37174.0710980113. The cubic root of 1381911562 is about 1113.8501050537.

The spelling of 1381911562 in words is "one billion, three hundred eighty-one million, nine hundred eleven thousand, five hundred sixty-two".