100983557 has 2 divisors, whose sum is σ = 100983558. Its totient is φ = 100983556.

The previous prime is 100983551. The next prime is 100983559. The reversal of 100983557 is 755389001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100982401 + 1156 = 10049^2 + 34^2 .

It is an emirp because it is prime and its reverse (755389001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100983557 - 2¹⁶ = 100918021 is a prime.

Together with 100983559, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100983557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100983551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50491778 + 50491779.

It is an arithmetic number, because the mean of its divisors is an integer number (50491779).

Almost surely, 2^100983557 is an apocalyptic number.

It is an amenable number.

100983557 is a deficient number, since it is larger than the sum of its proper divisors (1).

100983557 is an equidigital number, since it uses as much as digits as its factorization.

100983557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 100983557 is about 10049.0575179964. The cubic root of 100983557 is about 465.6756770631.

The spelling of 100983557 in words is "one hundred million, nine hundred eighty-three thousand, five hundred fifty-seven".