102653557 has 2 divisors, whose sum is σ = 102653558. Its totient is φ = 102653556.

The previous prime is 102653543. The next prime is 102653567. The reversal of 102653557 is 755356201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55442916 + 47210641 = 7446^2 + 6871^2 .

It is an emirp because it is prime and its reverse (755356201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102653557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102653567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51326778 + 51326779.

It is an arithmetic number, because the mean of its divisors is an integer number (51326779).

Almost surely, 2^102653557 is an apocalyptic number.

It is an amenable number.

102653557 is a deficient number, since it is larger than the sum of its proper divisors (1).

102653557 is an equidigital number, since it uses as much as digits as its factorization.

102653557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 102653557 is about 10131.8091671725. The cubic root of 102653557 is about 468.2286683560.

The spelling of 102653557 in words is "one hundred two million, six hundred fifty-three thousand, five hundred fifty-seven".