1142521554 has 16 divisors (see below), whose sum is σ = 2358754560. Its totient is φ = 368555280.

The previous prime is 1142521537. The next prime is 1142521561. The reversal of 1142521554 is 4551252411.

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, 3071109 + ... + 3071480.

It is an arithmetic number, because the mean of its divisors is an integer number (147422160).

Almost surely, 2^1142521554 is an apocalyptic number.

1142521554 is an abundant number, since it is smaller than the sum of its proper divisors (1216233006).

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

1142521554 is a wasteful number, since it uses less digits than its factorization.

1142521554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6142625.

The product of its digits is 8000, while the sum is 30.

The square root of 1142521554 is about 33801.2063985888. The cubic root of 1142521554 is about 1045.4135719461.

Adding to 1142521554 its reverse (4551252411), we get a palindrome (5693773965).

The spelling of 1142521554 in words is "one billion, one hundred forty-two million, five hundred twenty-one thousand, five hundred fifty-four".