2543105397 has 8 divisors (see below), whose sum is σ = 3875208256. Its totient is φ = 1453203072.

The previous prime is 2543105393. The next prime is 2543105419. The reversal of 2543105397 is 7935013452.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2543105397 - 2² = 2543105393 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 (2543105393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60550108 + ... + 60550149.

It is an arithmetic number, because the mean of its divisors is an integer number (484401032).

Almost surely, 2^2543105397 is an apocalyptic number.

It is an amenable number.

2543105397 is a deficient number, since it is larger than the sum of its proper divisors (1332102859).

2543105397 is a wasteful number, since it uses less digits than its factorization.

2543105397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121100267.

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 2543105397 is about 50429.2117427984. The cubic root of 2543105397 is about 1364.9648042019.

The spelling of 2543105397 in words is "two billion, five hundred forty-three million, one hundred five thousand, three hundred ninety-seven".