187538452 has 6 divisors (see below), whose sum is σ = 328192298. Its totient is φ = 93769224.

The previous prime is 187538443. The next prime is 187538467. The reversal of 187538452 is 254835781.

It can be written as a sum of positive squares in only one way, i.e., 179720836 + 7817616 = 13406^2 + 2796^2 .

It is a junction number, because it is equal to n+sod(n) for n = 187538399 and 187538408.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 23442303 + ... + 23442310.

Almost surely, 2^187538452 is an apocalyptic number.

It is an amenable number.

187538452 is a deficient number, since it is larger than the sum of its proper divisors (140653846).

187538452 is a wasteful number, since it uses less digits than its factorization.

187538452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46884617 (or 46884615 counting only the distinct ones).

The product of its digits is 268800, while the sum is 43.

The square root of 187538452 is about 13694.4679341696. The cubic root of 187538452 is about 572.3962444264.

The spelling of 187538452 in words is "one hundred eighty-seven million, five hundred thirty-eight thousand, four hundred fifty-two".