1402143331 has 4 divisors (see below), whose sum is σ = 1402596000. Its totient is φ = 1401690664.

The previous prime is 1402143257. The next prime is 1402143343. The reversal of 1402143331 is 1333412041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1402143331 - 2⁷ = 1402143203 is a prime.

It is a super-2 number, since 2×1402143331² = 3932011841335551122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1402143031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221656 + ... + 227893.

It is an arithmetic number, because the mean of its divisors is an integer number (350649000).

Almost surely, 2^1402143331 is an apocalyptic number.

1402143331 is a deficient number, since it is larger than the sum of its proper divisors (452669).

1402143331 is an equidigital number, since it uses as much as digits as its factorization.

1402143331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452668.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1402143331 is about 37445.2043791992. The cubic root of 1402143331 is about 1119.2595368745.

Adding to 1402143331 its reverse (1333412041), we get a palindrome (2735555372).

The spelling of 1402143331 in words is "one billion, four hundred two million, one hundred forty-three thousand, three hundred thirty-one".