381137623 has 12 divisors (see below), whose sum is σ = 399951720. Its totient is φ = 363174416.

The previous prime is 381137621. The next prime is 381137651. The reversal of 381137623 is 326731183.

It is not a de Polignac number, because 381137623 - 2¹ = 381137621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381137621) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 153768 + ... + 156226.

It is an arithmetic number, because the mean of its divisors is an integer number (33329310).

Almost surely, 2^381137623 is an apocalyptic number.

381137623 is a deficient number, since it is larger than the sum of its proper divisors (18814097).

381137623 is a wasteful number, since it uses less digits than its factorization.

381137623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2798 (or 2775 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 381137623 is about 19522.7462975884. The cubic root of 381137623 is about 725.0377296259.

The spelling of 381137623 in words is "three hundred eighty-one million, one hundred thirty-seven thousand, six hundred twenty-three".