102152251 has 2 divisors, whose sum is σ = 102152252. Its totient is φ = 102152250.

The previous prime is 102152243. The next prime is 102152261. The reversal of 102152251 is 152251201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102152251 - 2³ = 102152243 is a prime.

It is not a weakly prime, because it can be changed into another prime (102152261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51076125 + 51076126.

It is an arithmetic number, because the mean of its divisors is an integer number (51076126).

Almost surely, 2^102152251 is an apocalyptic number.

102152251 is a deficient number, since it is larger than the sum of its proper divisors (1).

102152251 is an equidigital number, since it uses as much as digits as its factorization.

102152251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 102152251 is about 10107.0396753946. The cubic root of 102152251 is about 467.4652300487.

The spelling of 102152251 in words is "one hundred two million, one hundred fifty-two thousand, two hundred fifty-one".