102983557 has 2 divisors, whose sum is σ = 102983558. Its totient is φ = 102983556.

The previous prime is 102983549. The next prime is 102983561. The reversal of 102983557 is 755389201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102292996 + 690561 = 10114^2 + 831^2 .

It is a cyclic number.

It is not a de Polignac number, because 102983557 - 2³ = 102983549 is a prime.

It is a super-2 number, since 2×102983557² = 21211226024744498, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102983597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51491778 + 51491779.

It is an arithmetic number, because the mean of its divisors is an integer number (51491779).

Almost surely, 2^102983557 is an apocalyptic number.

It is an amenable number.

102983557 is a deficient number, since it is larger than the sum of its proper divisors (1).

102983557 is an equidigital number, since it uses as much as digits as its factorization.

102983557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 102983557 is about 10148.0814442928. The cubic root of 102983557 is about 468.7298693103.

The spelling of 102983557 in words is "one hundred two million, nine hundred eighty-three thousand, five hundred fifty-seven".