102508061 has 2 divisors, whose sum is σ = 102508062. Its totient is φ = 102508060.

The previous prime is 102508051. The next prime is 102508067. The reversal of 102508061 is 160805201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100600900 + 1907161 = 10030^2 + 1381^2 .

It is a cyclic number.

It is not a de Polignac number, because 102508061 - 2⁶ = 102507997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102508067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51254030 + 51254031.

It is an arithmetic number, because the mean of its divisors is an integer number (51254031).

Almost surely, 2^102508061 is an apocalyptic number.

It is an amenable number.

102508061 is a deficient number, since it is larger than the sum of its proper divisors (1).

102508061 is an equidigital number, since it uses as much as digits as its factorization.

102508061 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 23.

The square root of 102508061 is about 10124.6264622454. The cubic root of 102508061 is about 468.0073491553.

The spelling of 102508061 in words is "one hundred two million, five hundred eight thousand, sixty-one".