1142699663 has 16 divisors (see below), whose sum is σ = 1338094080. Its totient is φ = 955552416.

The previous prime is 1142699651. The next prime is 1142699681. The reversal of 1142699663 is 3669962411.

It is a happy number.

It is not a de Polignac number, because 1142699663 - 2⁶ = 1142699599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142690663) 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, 57806 + ... + 75012.

It is an arithmetic number, because the mean of its divisors is an integer number (83630880).

Almost surely, 2^1142699663 is an apocalyptic number.

1142699663 is a deficient number, since it is larger than the sum of its proper divisors (195394417).

1142699663 is a wasteful number, since it uses less digits than its factorization.

1142699663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17446.

The product of its digits is 419904, while the sum is 47.

The square root of 1142699663 is about 33803.8409504009. The cubic root of 1142699663 is about 1045.4678926985.

The spelling of 1142699663 in words is "one billion, one hundred forty-two million, six hundred ninety-nine thousand, six hundred sixty-three".