157881941 has 8 divisors (see below), whose sum is σ = 191050560. Its totient is φ = 127366848.

The previous prime is 157881931. The next prime is 157881943. The reversal of 157881941 is 149188751.

It is a happy number.

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

It is not a de Polignac number, because 157881941 - 2¹⁸ = 157619797 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157881892 and 157881901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157881943) 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 7 ways as a sum of consecutive naturals, for example, 663251 + ... + 663488.

It is an arithmetic number, because the mean of its divisors is an integer number (23881320).

Almost surely, 2^157881941 is an apocalyptic number.

It is an amenable number.

157881941 is a deficient number, since it is larger than the sum of its proper divisors (33168619).

157881941 is a wasteful number, since it uses less digits than its factorization.

157881941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326763.

The product of its digits is 80640, while the sum is 44.

The square root of 157881941 is about 12565.1080775296. The cubic root of 157881941 is about 540.4773339939.

The spelling of 157881941 in words is "one hundred fifty-seven million, eight hundred eighty-one thousand, nine hundred forty-one".