1316643142 has 16 divisors (see below), whose sum is σ = 2072757600. Its totient is φ = 626055232.

The previous prime is 1316643137. The next prime is 1316643143. The reversal of 1316643142 is 2413466131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1316643143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74767 + ... + 90682.

It is an arithmetic number, because the mean of its divisors is an integer number (129547350).

Almost surely, 2^1316643142 is an apocalyptic number.

1316643142 is a deficient number, since it is larger than the sum of its proper divisors (756114458).

1316643142 is a wasteful number, since it uses less digits than its factorization.

1316643142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165647.

The product of its digits is 10368, while the sum is 31.

The square root of 1316643142 is about 36285.5776032296. The cubic root of 1316643142 is about 1096.0306364312.

The spelling of 1316643142 in words is "one billion, three hundred sixteen million, six hundred forty-three thousand, one hundred forty-two".