1426251543 has 32 divisors (see below), whose sum is σ = 2026536960. Its totient is φ = 890922240.

The previous prime is 1426251521. The next prime is 1426251557. The reversal of 1426251543 is 3451526241.

It is not a de Polignac number, because 1426251543 - 2²⁰ = 1425202967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1426256543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357546 + ... + 361512.

It is an arithmetic number, because the mean of its divisors is an integer number (63329280).

Almost surely, 2^1426251543 is an apocalyptic number.

1426251543 is a deficient number, since it is larger than the sum of its proper divisors (600285417).

1426251543 is a wasteful number, since it uses less digits than its factorization.

1426251543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127.

The product of its digits is 28800, while the sum is 33.

The square root of 1426251543 is about 37765.7456301342. The cubic root of 1426251543 is about 1125.6379046920.

Adding to 1426251543 its reverse (3451526241), we get a palindrome (4877777784).

The spelling of 1426251543 in words is "one billion, four hundred twenty-six million, two hundred fifty-one thousand, five hundred forty-three".