2097155407 has 2 divisors, whose sum is σ = 2097155408. Its totient is φ = 2097155406.

The previous prime is 2097155399. The next prime is 2097155483. The reversal of 2097155407 is 7045517902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2097155407 - 2³ = 2097155399 is a prime.

It is a super-2 number, since 2×2097155407² = 8796121602218671298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2097155407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2097455407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1048577703 + 1048577704.

It is an arithmetic number, because the mean of its divisors is an integer number (1048577704).

Almost surely, 2^2097155407 is an apocalyptic number.

2097155407 is a deficient number, since it is larger than the sum of its proper divisors (1).

2097155407 is an equidigital number, since it uses as much as digits as its factorization.

2097155407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 2097155407 is about 45794.7093778310. The cubic root of 2097155407 is about 1280.0006931555. Note that the first 3 decimals are identical.

The spelling of 2097155407 in words is "two billion, ninety-seven million, one hundred fifty-five thousand, four hundred seven".