100988761 has 2 divisors, whose sum is σ = 100988762. Its totient is φ = 100988760.

The previous prime is 100988753. The next prime is 100988777. The reversal of 100988761 is 167889001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100380361 + 608400 = 10019^2 + 780^2 .

It is a cyclic number.

It is not a de Polignac number, because 100988761 - 2³ = 100988753 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (100988861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50494380 + 50494381.

It is an arithmetic number, because the mean of its divisors is an integer number (50494381).

Almost surely, 2^100988761 is an apocalyptic number.

It is an amenable number.

100988761 is a deficient number, since it is larger than the sum of its proper divisors (1).

100988761 is an equidigital number, since it uses as much as digits as its factorization.

100988761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 100988761 is about 10049.3164444155. The cubic root of 100988761 is about 465.6836761694.

The spelling of 100988761 in words is "one hundred million, nine hundred eighty-eight thousand, seven hundred sixty-one".