102172812237 has 16 divisors (see below), whose sum is σ = 151505914560. Its totient is φ = 68052754800.

The previous prime is 102172812233. The next prime is 102172812257. The reversal of 102172812237 is 732218271201.

It is a happy number.

It is not a de Polignac number, because 102172812237 - 2² = 102172812233 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102172812233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1704814 + ... + 1763727.

It is an arithmetic number, because the mean of its divisors is an integer number (9469119660).

Almost surely, 2^102172812237 is an apocalyptic number.

It is an amenable number.

102172812237 is a deficient number, since it is larger than the sum of its proper divisors (49333102323).

102172812237 is a wasteful number, since it uses less digits than its factorization.

102172812237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3469641 (or 3469635 counting only the distinct ones).

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

The spelling of 102172812237 in words is "one hundred two billion, one hundred seventy-two million, eight hundred twelve thousand, two hundred thirty-seven".