1381075894 has 32 divisors (see below), whose sum is σ = 2398222080. Its totient is φ = 590277600.

The previous prime is 1381075877. The next prime is 1381075897. The reversal of 1381075894 is 4985701831.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381075897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6724 + ... + 52984.

It is an arithmetic number, because the mean of its divisors is an integer number (74944440).

Almost surely, 2^1381075894 is an apocalyptic number.

1381075894 is a deficient number, since it is larger than the sum of its proper divisors (1017146186).

1381075894 is a wasteful number, since it uses less digits than its factorization.

1381075894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46356.

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 1381075894 is about 37162.8294670898. The cubic root of 1381075894 is about 1113.6255377215.

The spelling of 1381075894 in words is "one billion, three hundred eighty-one million, seventy-five thousand, eight hundred ninety-four".