1142537388 has 24 divisors (see below), whose sum is σ = 2691806208. Its totient is φ = 377147856.

The previous prime is 1142537371. The next prime is 1142537437. The reversal of 1142537388 is 8837352411.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460956 + ... + 463427.

It is an arithmetic number, because the mean of its divisors is an integer number (112158592).

Almost surely, 2^1142537388 is an apocalyptic number.

It is an amenable number.

1142537388 is an abundant number, since it is smaller than the sum of its proper divisors (1549268820).

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

1142537388 is a wasteful number, since it uses less digits than its factorization.

1142537388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924493 (or 924491 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 1142537388 is about 33801.4406201866. The cubic root of 1142537388 is about 1045.4184013231.

Adding to 1142537388 its reverse (8837352411), we get a palindrome (9979889799).

The spelling of 1142537388 in words is "one billion, one hundred forty-two million, five hundred thirty-seven thousand, three hundred eighty-eight".