187100137242 has 48 divisors (see below), whose sum is σ = 440830556712. Its totient is φ = 57111644160.

The previous prime is 187100137223. The next prime is 187100137277. The reversal of 187100137242 is 242731001781.

187100137242 is a `hidden beast` number, since 187 + 100 + 1 + 372 + 4 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 183930334641 + 3169802601 = 428871^2 + 56301^2 .

It is a super-2 number, since 2×187100137242² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 187100137197 and 187100137206.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8251359 + ... + 8274002.

Almost surely, 2^187100137242 is an apocalyptic number.

187100137242 is an abundant number, since it is smaller than the sum of its proper divisors (253730419470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

187100137242 is a wasteful number, since it uses less digits than its factorization.

187100137242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16525423 (or 16525420 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The spelling of 187100137242 in words is "one hundred eighty-seven billion, one hundred million, one hundred thirty-seven thousand, two hundred forty-two".