40117097 has 4 divisors (see below), whose sum is σ = 40139220. Its totient is φ = 40094976.

The previous prime is 40117073. The next prime is 40117153. The reversal of 40117097 is 79071104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32993536 + 7123561 = 5744^2 + 2669^2 .

It is a cyclic number.

It is not a de Polignac number, because 40117097 - 2⁸ = 40116841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40117057) 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 in 3 ways as a sum of consecutive naturals, for example, 8072 + ... + 12057.

It is an arithmetic number, because the mean of its divisors is an integer number (10034805).

Almost surely, 2^40117097 is an apocalyptic number.

It is an amenable number.

40117097 is a deficient number, since it is larger than the sum of its proper divisors (22123).

40117097 is a wasteful number, since it uses less digits than its factorization.

40117097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22122.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 40117097 is about 6333.8058858794. The cubic root of 40117097 is about 342.3285859712.

The spelling of 40117097 in words is "forty million, one hundred seventeen thousand, ninety-seven".