187070131 has 4 divisors (see below), whose sum is σ = 189324072. Its totient is φ = 184816192.

The previous prime is 187070123. The next prime is 187070137. The reversal of 187070131 is 131070781.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131070781 = 179 ⋅732239.

It is a cyclic number.

It is not a de Polignac number, because 187070131 - 2³ = 187070123 is a prime.

It is a super-2 number, since 2×187070131² = 69990467824714322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 187070131.

It is not an unprimeable number, because it can be changed into a prime (187070137) 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, 1126846 + ... + 1127011.

It is an arithmetic number, because the mean of its divisors is an integer number (47331018).

Almost surely, 2^187070131 is an apocalyptic number.

187070131 is a deficient number, since it is larger than the sum of its proper divisors (2253941).

187070131 is an equidigital number, since it uses as much as digits as its factorization.

187070131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2253940.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 187070131 is about 13677.3583341229. The cubic root of 187070131 is about 571.9193846567.

The spelling of 187070131 in words is "one hundred eighty-seven million, seventy thousand, one hundred thirty-one".