101550913 has 2 divisors, whose sum is σ = 101550914. Its totient is φ = 101550912.

The previous prime is 101550901. The next prime is 101550923. The reversal of 101550913 is 319055101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98267569 + 3283344 = 9913^2 + 1812^2 .

It is a cyclic number.

It is not a de Polignac number, because 101550913 - 2⁵ = 101550881 is a prime.

It is a super-2 number, since 2×101550913² = 20625175862267138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101550923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50775456 + 50775457.

It is an arithmetic number, because the mean of its divisors is an integer number (50775457).

Almost surely, 2^101550913 is an apocalyptic number.

It is an amenable number.

101550913 is a deficient number, since it is larger than the sum of its proper divisors (1).

101550913 is an equidigital number, since it uses as much as digits as its factorization.

101550913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 675, while the sum is 25.

The square root of 101550913 is about 10077.2472927878. The cubic root of 101550913 is about 466.5461509092.

The spelling of 101550913 in words is "one hundred one million, five hundred fifty thousand, nine hundred thirteen".