1154534442 has 16 divisors (see below), whose sum is σ = 2309492640. Its totient is φ = 384774192.

The previous prime is 1154534429. The next prime is 1154534443. The reversal of 1154534442 is 2444354511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1154534443) 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, 26109 + ... + 54687.

It is an arithmetic number, because the mean of its divisors is an integer number (144343290).

Almost surely, 2^1154534442 is an apocalyptic number.

1154534442 is an abundant number, since it is smaller than the sum of its proper divisors (1154958198).

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

1154534442 is a wasteful number, since it uses less digits than its factorization.

1154534442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35317.

The product of its digits is 38400, while the sum is 33.

The square root of 1154534442 is about 33978.4408412158. The cubic root of 1154534442 is about 1049.0647581510.

Adding to 1154534442 its reverse (2444354511), we get a palindrome (3598888953).

The spelling of 1154534442 in words is "one billion, one hundred fifty-four million, five hundred thirty-four thousand, four hundred forty-two".