381361142 has 16 divisors (see below), whose sum is σ = 582431472. Its totient is φ = 187228320.

The previous prime is 381361139. The next prime is 381361159. The reversal of 381361142 is 241163183.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77273 + ... + 82059.

It is an arithmetic number, because the mean of its divisors is an integer number (36401967).

Almost surely, 2^381361142 is an apocalyptic number.

381361142 is a deficient number, since it is larger than the sum of its proper divisors (201070330).

381361142 is a wasteful number, since it uses less digits than its factorization.

381361142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5503.

The product of its digits is 3456, while the sum is 29.

The square root of 381361142 is about 19528.4700373583. The cubic root of 381361142 is about 725.1794352537.

The spelling of 381361142 in words is "three hundred eighty-one million, three hundred sixty-one thousand, one hundred forty-two".