1143402051 has 16 divisors (see below), whose sum is σ = 1670100480. Its totient is φ = 690066720.

The previous prime is 1143402023. The next prime is 1143402089. The reversal of 1143402051 is 1502043411.

It is not a de Polignac number, because 1143402051 - 2¹⁰ = 1143401027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143402451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64600 + ... + 80373.

It is an arithmetic number, because the mean of its divisors is an integer number (104381280).

Almost surely, 2^1143402051 is an apocalyptic number.

1143402051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1143402051 is a deficient number, since it is larger than the sum of its proper divisors (526698429).

1143402051 is a wasteful number, since it uses less digits than its factorization.

1143402051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145226.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1143402051 is about 33814.2285288309. The cubic root of 1143402051 is about 1045.6820562040.

Adding to 1143402051 its reverse (1502043411), we get a palindrome (2645445462).

The spelling of 1143402051 in words is "one billion, one hundred forty-three million, four hundred two thousand, fifty-one".