1142551224 has 32 divisors (see below), whose sum is σ = 3173754000. Its totient is φ = 380850336.

The previous prime is 1142551219. The next prime is 1142551229. The reversal of 1142551224 is 4221552411.

It is a happy number.

1142551224 is a `hidden beast` number, since 1 + 142 + 5 + 512 + 2 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1142551219) and next prime (1142551229).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142551229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2644579 + ... + 2645010.

Almost surely, 2^1142551224 is an apocalyptic number.

It is an amenable number.

1142551224 is an abundant number, since it is smaller than the sum of its proper divisors (2031202776).

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

1142551224 is a wasteful number, since it uses less digits than its factorization.

1142551224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5289604 (or 5289594 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 1142551224 is about 33801.6452853999. The cubic root of 1142551224 is about 1045.4226212727.

The spelling of 1142551224 in words is "one billion, one hundred forty-two million, five hundred fifty-one thousand, two hundred twenty-four".