1142488667 has 4 divisors (see below), whose sum is σ = 1146162576. Its totient is φ = 1138814760.

The previous prime is 1142488649. The next prime is 1142488673. The reversal of 1142488667 is 7668842411.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142488667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142481667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1836488 + ... + 1837109.

It is an arithmetic number, because the mean of its divisors is an integer number (286540644).

Almost surely, 2^1142488667 is an apocalyptic number.

1142488667 is a deficient number, since it is larger than the sum of its proper divisors (3673909).

1142488667 is an equidigital number, since it uses as much as digits as its factorization.

1142488667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673908.

The product of its digits is 516096, while the sum is 47.

The square root of 1142488667 is about 33800.7199183686. The cubic root of 1142488667 is about 1045.4035412539.

The spelling of 1142488667 in words is "one billion, one hundred forty-two million, four hundred eighty-eight thousand, six hundred sixty-seven".