102043251 has 24 divisors (see below), whose sum is σ = 151205184. Its totient is φ = 66284160.

The previous prime is 102043241. The next prime is 102043261. The reversal of 102043251 is 152340201.

It is an interprime number because it is at equal distance from previous prime (102043241) and next prime (102043261).

It is a de Polignac number, because none of the positive numbers 2^k-102043251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102043241) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 133711 + ... + 134471.

It is an arithmetic number, because the mean of its divisors is an integer number (6300216).

Almost surely, 2^102043251 is an apocalyptic number.

102043251 is a deficient number, since it is larger than the sum of its proper divisors (49161933).

102043251 is a wasteful number, since it uses less digits than its factorization.

102043251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102043251 is about 10101.6459549917. The cubic root of 102043251 is about 467.2989036635.

Adding to 102043251 its reverse (152340201), we get a palindrome (254383452).

The spelling of 102043251 in words is "one hundred two million, forty-three thousand, two hundred fifty-one".