1142521152 has 28 divisors (see below), whose sum is σ = 3022921056. Its totient is φ = 380840320.

The previous prime is 1142521141. The next prime is 1142521153. The reversal of 1142521152 is 2511252411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142521153) 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, 2975124 + ... + 2975507.

Almost surely, 2^1142521152 is an apocalyptic number.

1142521152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1142521152 is an abundant number, since it is smaller than the sum of its proper divisors (1880399904).

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

1142521152 is an equidigital number, since it uses as much as digits as its factorization.

1142521152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5950646 (or 5950636 counting only the distinct ones).

The product of its digits is 800, while the sum is 24.

The square root of 1142521152 is about 33801.2004520550. The cubic root of 1142521152 is about 1045.4134493354.

Adding to 1142521152 its reverse (2511252411), we get a palindrome (3653773563).

The spelling of 1142521152 in words is "one billion, one hundred forty-two million, five hundred twenty-one thousand, one hundred fifty-two".