101240977 has 2 divisors, whose sum is σ = 101240978. Its totient is φ = 101240976.

The previous prime is 101240957. The next prime is 101240981. The reversal of 101240977 is 779042101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86564416 + 14676561 = 9304^2 + 3831^2 .

It is an emirp because it is prime and its reverse (779042101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101240977 - 2¹⁹ = 100716689 is a prime.

It is not a weakly prime, because it can be changed into another prime (101240957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50620488 + 50620489.

It is an arithmetic number, because the mean of its divisors is an integer number (50620489).

Almost surely, 2^101240977 is an apocalyptic number.

It is an amenable number.

101240977 is a deficient number, since it is larger than the sum of its proper divisors (1).

101240977 is an equidigital number, since it uses as much as digits as its factorization.

101240977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 101240977 is about 10061.8575322850. The cubic root of 101240977 is about 466.0710302675.

The spelling of 101240977 in words is "one hundred one million, two hundred forty thousand, nine hundred seventy-seven".