102401953 has 2 divisors, whose sum is σ = 102401954. Its totient is φ = 102401952.

The previous prime is 102401947. The next prime is 102402007. The reversal of 102401953 is 359104201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100641024 + 1760929 = 10032^2 + 1327^2 .

It is an emirp because it is prime and its reverse (359104201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102401953 is a prime.

It is not a weakly prime, because it can be changed into another prime (102401053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51200976 + 51200977.

It is an arithmetic number, because the mean of its divisors is an integer number (51200977).

Almost surely, 2^102401953 is an apocalyptic number.

It is an amenable number.

102401953 is a deficient number, since it is larger than the sum of its proper divisors (1).

102401953 is an equidigital number, since it uses as much as digits as its factorization.

102401953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 102401953 is about 10119.3850109579. The cubic root of 102401953 is about 467.8458123694.

The spelling of 102401953 in words is "one hundred two million, four hundred one thousand, nine hundred fifty-three".