102507397 has 2 divisors, whose sum is σ = 102507398. Its totient is φ = 102507396.

The previous prime is 102507371. The next prime is 102507473. The reversal of 102507397 is 793705201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76282756 + 26224641 = 8734^2 + 5121^2 .

It is an emirp because it is prime and its reverse (793705201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102507397 - 2¹⁹ = 101983109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102507347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51253698 + 51253699.

It is an arithmetic number, because the mean of its divisors is an integer number (51253699).

Almost surely, 2^102507397 is an apocalyptic number.

It is an amenable number.

102507397 is a deficient number, since it is larger than the sum of its proper divisors (1).

102507397 is an equidigital number, since it uses as much as digits as its factorization.

102507397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 102507397 is about 10124.5936708591. The cubic root of 102507397 is about 468.0063386411.

The spelling of 102507397 in words is "one hundred two million, five hundred seven thousand, three hundred ninety-seven".