1142669137 has 2 divisors, whose sum is σ = 1142669138. Its totient is φ = 1142669136.

The previous prime is 1142669117. The next prime is 1142669179. The reversal of 1142669137 is 7319662411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1122518016 + 20151121 = 33504^2 + 4489^2 .

It is an emirp because it is prime and its reverse (7319662411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142669137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1142669137.

It is not a weakly prime, because it can be changed into another prime (1142669117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571334568 + 571334569.

It is an arithmetic number, because the mean of its divisors is an integer number (571334569).

Almost surely, 2^1142669137 is an apocalyptic number.

It is an amenable number.

1142669137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142669137 is an equidigital number, since it uses as much as digits as its factorization.

1142669137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 40.

The square root of 1142669137 is about 33803.3894306473. The cubic root of 1142669137 is about 1045.4585830965.

The spelling of 1142669137 in words is "one billion, one hundred forty-two million, six hundred sixty-nine thousand, one hundred thirty-seven".