4155397 has 4 divisors (see below), whose sum is σ = 4161760. Its totient is φ = 4149036.

The previous prime is 4155367. The next prime is 4155401. The reversal of 4155397 is 7935514.

4155397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 4155397 - 2⁷ = 4155269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4155337) 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, 2073 + ... + 3550.

It is an arithmetic number, because the mean of its divisors is an integer number (1040440).

Almost surely, 2^4155397 is an apocalyptic number.

It is an amenable number.

4155397 is a deficient number, since it is larger than the sum of its proper divisors (6363).

4155397 is an equidigital number, since it uses as much as digits as its factorization.

4155397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6362.

The product of its digits is 18900, while the sum is 34.

The square root of 4155397 is about 2038.4790899099. The cubic root of 4155397 is about 160.7696898597.

The spelling of 4155397 in words is "four million, one hundred fifty-five thousand, three hundred ninety-seven".