102287137 has 4 divisors (see below), whose sum is σ = 103280320. Its totient is φ = 101293956.

The previous prime is 102287117. The next prime is 102287149. The reversal of 102287137 is 731782201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102287137 - 2²³ = 93898529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102287099 and 102287108.

It is not an unprimeable number, because it can be changed into a prime (102287117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496437 + ... + 496642.

It is an arithmetic number, because the mean of its divisors is an integer number (25820080).

Almost surely, 2^102287137 is an apocalyptic number.

It is an amenable number.

102287137 is a deficient number, since it is larger than the sum of its proper divisors (993183).

102287137 is an equidigital number, since it uses as much as digits as its factorization.

102287137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993182.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 102287137 is about 10113.7103478397. The cubic root of 102287137 is about 467.6708929407.

The spelling of 102287137 in words is "one hundred two million, two hundred eighty-seven thousand, one hundred thirty-seven".