1142454173 has 24 divisors (see below), whose sum is σ = 1383596928. Its totient is φ = 923941728.

The previous prime is 1142454169. The next prime is 1142454223. The reversal of 1142454173 is 3714542411.

It is not a de Polignac number, because 1142454173 - 2² = 1142454169 is a prime.

It is a super-2 number, since 2×1142454173² = 2610403074810227858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142454133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 739640 + ... + 741182.

It is an arithmetic number, because the mean of its divisors is an integer number (57649872).

Almost surely, 2^1142454173 is an apocalyptic number.

It is an amenable number.

1142454173 is a deficient number, since it is larger than the sum of its proper divisors (241142755).

1142454173 is a wasteful number, since it uses less digits than its factorization.

1142454173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881 (or 1862 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 1142454173 is about 33800.2096591131. The cubic root of 1142454173 is about 1045.3930202123.

Adding to 1142454173 its reverse (3714542411), we get a palindrome (4856996584).

The spelling of 1142454173 in words is "one billion, one hundred forty-two million, four hundred fifty-four thousand, one hundred seventy-three".