187114381 has 4 divisors (see below), whose sum is σ = 187159264. Its totient is φ = 187069500.

The previous prime is 187114373. The next prime is 187114387. The reversal of 187114381 is 183411781.

187114381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 187114381 - 2³ = 187114373 is a prime.

It is a super-2 number, since 2×187114381² = 70023583154026322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187114387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15465 + ... + 24766.

It is an arithmetic number, because the mean of its divisors is an integer number (46789816).

Almost surely, 2^187114381 is an apocalyptic number.

It is an amenable number.

187114381 is a deficient number, since it is larger than the sum of its proper divisors (44883).

187114381 is an equidigital number, since it uses as much as digits as its factorization.

187114381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44882.

The product of its digits is 5376, while the sum is 34.

The square root of 187114381 is about 13678.9758754082. The cubic root of 187114381 is about 571.9644754781.

The spelling of 187114381 in words is "one hundred eighty-seven million, one hundred fourteen thousand, three hundred eighty-one".