97001181 has 6 divisors (see below), whose sum is σ = 140112830. Its totient is φ = 64667448.

The previous prime is 97001173. The next prime is 97001197. The reversal of 97001181 is 18110079.

It can be written as a sum of positive squares in only one way, i.e., 56475225 + 40525956 = 7515^2 + 6366^2 .

It is not a de Polignac number, because 97001181 - 2³ = 97001173 is a prime.

It is a super-2 number, since 2×97001181² = 18818458230789522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97001101) 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, 5388946 + ... + 5388963.

Almost surely, 2^97001181 is an apocalyptic number.

It is an amenable number.

97001181 is a deficient number, since it is larger than the sum of its proper divisors (43111649).

97001181 is a wasteful number, since it uses less digits than its factorization.

97001181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10777915 (or 10777912 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 27.

The square root of 97001181 is about 9848.9177578047. The cubic root of 97001181 is about 459.4719539354.

The spelling of 97001181 in words is "ninety-seven million, one thousand, one hundred eighty-one".