1143040254 has 32 divisors (see below), whose sum is σ = 2422296576. Its totient is φ = 358343040.

The previous prime is 1143040231. The next prime is 1143040267. The reversal of 1143040254 is 4520403411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179139 + ... + 185409.

It is an arithmetic number, because the mean of its divisors is an integer number (75696768).

Almost surely, 2^1143040254 is an apocalyptic number.

1143040254 is an abundant number, since it is smaller than the sum of its proper divisors (1279256322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143040254 is a wasteful number, since it uses less digits than its factorization.

1143040254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8080.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1143040254 is about 33808.8783309947. The cubic root of 1143040254 is about 1045.5717524717.

Adding to 1143040254 its reverse (4520403411), we get a palindrome (5663443665).

The spelling of 1143040254 in words is "one billion, one hundred forty-three million, forty thousand, two hundred fifty-four".