2147340997 has 4 divisors (see below), whose sum is σ = 2147473120. Its totient is φ = 2147208876.

The previous prime is 2147340977. The next prime is 2147341033. The reversal of 2147340997 is 7990437412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2147340997 is a prime.

It is a super-2 number, since 2×2147340997² = 9222146714793908018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147340947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37593 + ... + 75550.

It is an arithmetic number, because the mean of its divisors is an integer number (536868280).

Almost surely, 2^2147340997 is an apocalyptic number.

It is an amenable number.

2147340997 is a deficient number, since it is larger than the sum of its proper divisors (132123).

2147340997 is a wasteful number, since it uses less digits than its factorization.

2147340997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132122.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 2147340997 is about 46339.4108400182. The cubic root of 2147340997 is about 1290.1305873049.

The spelling of 2147340997 in words is "two billion, one hundred forty-seven million, three hundred forty thousand, nine hundred ninety-seven".