1142154453 has 12 divisors (see below), whose sum is σ = 1673901824. Its totient is φ = 692214600.

The previous prime is 1142154413. The next prime is 1142154457. The reversal of 1142154453 is 3544512411.

It is not a de Polignac number, because 1142154453 - 2⁶ = 1142154389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1142154453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142154457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1572853 + ... + 1573578.

Almost surely, 2^1142154453 is an apocalyptic number.

It is an amenable number.

1142154453 is a deficient number, since it is larger than the sum of its proper divisors (531747371).

1142154453 is a wasteful number, since it uses less digits than its factorization.

1142154453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146456 (or 3146445 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 1142154453 is about 33795.7756679737. The cubic root of 1142154453 is about 1045.3015934670.

Adding to 1142154453 its reverse (3544512411), we get a palindrome (4686666864).

The spelling of 1142154453 in words is "one billion, one hundred forty-two million, one hundred fifty-four thousand, four hundred fifty-three".