102142253 has 2 divisors, whose sum is σ = 102142254. Its totient is φ = 102142252.

The previous prime is 102142247. The next prime is 102142267. The reversal of 102142253 is 352241201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90288004 + 11854249 = 9502^2 + 3443^2 .

It is a cyclic number.

It is not a de Polignac number, because 102142253 - 2⁸ = 102141997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102142753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51071126 + 51071127.

It is an arithmetic number, because the mean of its divisors is an integer number (51071127).

Almost surely, 2^102142253 is an apocalyptic number.

It is an amenable number.

102142253 is a deficient number, since it is larger than the sum of its proper divisors (1).

102142253 is an equidigital number, since it uses as much as digits as its factorization.

102142253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 102142253 is about 10106.5450575357. The cubic root of 102142253 is about 467.4499787292.

Adding to 102142253 its reverse (352241201), we get a palindrome (454383454).

The spelling of 102142253 in words is "one hundred two million, one hundred forty-two thousand, two hundred fifty-three".