1142553402 has 12 divisors (see below), whose sum is σ = 2475532410. Its totient is φ = 380851128.

The previous prime is 1142553389. The next prime is 1142553403. The reversal of 1142553402 is 2043552411.

1142553402 is a `hidden beast` number, since 1 + 1 + 4 + 255 + 3 + 402 = 666.

1142553402 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1071842121 + 70711281 = 32739^2 + 8409^2 .

It is not an unprimeable number, because it can be changed into a prime (1142553403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31737577 + ... + 31737612.

Almost surely, 2^1142553402 is an apocalyptic number.

1142553402 is an abundant number, since it is smaller than the sum of its proper divisors (1332979008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142553402 is a wasteful number, since it uses less digits than its factorization.

1142553402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63475197 (or 63475194 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1142553402 is about 33801.6775027513. The cubic root of 1142553402 is about 1045.4232855549.

Subtracting 1142553402 from its reverse (2043552411), we obtain a palindrome (900999009).

The spelling of 1142553402 in words is "one billion, one hundred forty-two million, five hundred fifty-three thousand, four hundred two".