1140121552 has 20 divisors (see below), whose sum is σ = 2268688996. Its totient is φ = 554653440.

The previous prime is 1140121547. The next prime is 1140121553. The reversal of 1140121552 is 2551210411.

It can be written as a sum of positive squares in 2 ways, for example, as 429152656 + 710968896 = 20716^2 + 26664^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140121553) 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, 962349 + ... + 963532.

Almost surely, 2^1140121552 is an apocalyptic number.

It is an amenable number.

1140121552 is a deficient number, since it is larger than the sum of its proper divisors (1128567444).

1140121552 is a wasteful number, since it uses less digits than its factorization.

1140121552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925926 (or 1925920 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1140121552 is about 33765.6860140587. The cubic root of 1140121552 is about 1044.6810537363.

Adding to 1140121552 its reverse (2551210411), we get a palindrome (3691331963).

The spelling of 1140121552 in words is "one billion, one hundred forty million, one hundred twenty-one thousand, five hundred fifty-two".