1331134142 has 16 divisors (see below), whose sum is σ = 2170394352. Its totient is φ = 608626560.

The previous prime is 1331134139. The next prime is 1331134151. The reversal of 1331134142 is 2414311331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236459 + ... + 242022.

It is an arithmetic number, because the mean of its divisors is an integer number (135649647).

Almost surely, 2^1331134142 is an apocalyptic number.

1331134142 is a deficient number, since it is larger than the sum of its proper divisors (839260210).

1331134142 is a wasteful number, since it uses less digits than its factorization.

1331134142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478603.

The product of its digits is 864, while the sum is 23.

The square root of 1331134142 is about 36484.7110718997. The cubic root of 1331134142 is about 1100.0369524776.

Adding to 1331134142 its reverse (2414311331), we get a palindrome (3745445473).

The spelling of 1331134142 in words is "one billion, three hundred thirty-one million, one hundred thirty-four thousand, one hundred forty-two".