102251231 has 2 divisors, whose sum is σ = 102251232. Its totient is φ = 102251230.

The previous prime is 102251221. The next prime is 102251249. The reversal of 102251231 is 132152201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102251231 - 2¹⁸ = 101989087 is a prime.

It is a super-2 number, since 2×102251231² = 20910628482030722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102251221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51125615 + 51125616.

It is an arithmetic number, because the mean of its divisors is an integer number (51125616).

Almost surely, 2^102251231 is an apocalyptic number.

102251231 is a deficient number, since it is larger than the sum of its proper divisors (1).

102251231 is an equidigital number, since it uses as much as digits as its factorization.

102251231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 102251231 is about 10111.9350769277. The cubic root of 102251231 is about 467.6161641423.

The spelling of 102251231 in words is "one hundred two million, two hundred fifty-one thousand, two hundred thirty-one".