187055385001 has 3 divisors (see below), whose sum is σ = 187055817501. Its totient is φ = 187054952502.

The previous prime is 187055384951. The next prime is 187055385047. The reversal of 187055385001 is 100583550781.

It is a happy number.

The square root of 187055385001 is 432499.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 100583550781 = 7 ⋅14369078683.

It is not a de Polignac number, because 187055385001 - 2⁹ = 187055384489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (187055385091) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 216250 + ... + 648748.

It is an arithmetic number, because the mean of its divisors is an integer number (62351939167).

Almost surely, 2^187055385001 is an apocalyptic number.

187055385001 is the 432499-th square number.

187055385001 is the 216250-th centered octagonal number.

It is an amenable number.

187055385001 is a deficient number, since it is larger than the sum of its proper divisors (432500).

187055385001 is an frugal number, since it uses more digits than its factorization.

187055385001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864998 (or 432499 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 43.

The spelling of 187055385001 in words is "one hundred eighty-seven billion, fifty-five million, three hundred eighty-five thousand, one".