97981101 has 6 divisors (see below), whose sum is σ = 141528270. Its totient is φ = 65320728.

The previous prime is 97981099. The next prime is 97981129. The reversal of 97981101 is 10118979.

It can be written as a sum of positive squares in only one way, i.e., 93026025 + 4955076 = 9645^2 + 2226^2 .

It is not a de Polignac number, because 97981101 - 2¹ = 97981099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97981141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5443386 + ... + 5443403.

It is an arithmetic number, because the mean of its divisors is an integer number (23588045).

Almost surely, 2^97981101 is an apocalyptic number.

It is an amenable number.

97981101 is a deficient number, since it is larger than the sum of its proper divisors (43547169).

97981101 is a wasteful number, since it uses less digits than its factorization.

97981101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10886795 (or 10886792 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 36.

The square root of 97981101 is about 9898.5403469400. The cubic root of 97981101 is about 461.0139903497.

The spelling of 97981101 in words is "ninety-seven million, nine hundred eighty-one thousand, one hundred one".