116201557 has 2 divisors, whose sum is σ = 116201558. Its totient is φ = 116201556.

The previous prime is 116201539. The next prime is 116201573. The reversal of 116201557 is 755102611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74805201 + 41396356 = 8649^2 + 6434^2 .

It is a cyclic number.

It is not a de Polignac number, because 116201557 - 2⁷ = 116201429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116201357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58100778 + 58100779.

It is an arithmetic number, because the mean of its divisors is an integer number (58100779).

Almost surely, 2^116201557 is an apocalyptic number.

It is an amenable number.

116201557 is a deficient number, since it is larger than the sum of its proper divisors (1).

116201557 is an equidigital number, since it uses as much as digits as its factorization.

116201557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 116201557 is about 10779.6826020064. The cubic root of 116201557 is about 487.9822019958.

The spelling of 116201557 in words is "one hundred sixteen million, two hundred one thousand, five hundred fifty-seven".