1142486447 has 4 divisors (see below), whose sum is σ = 1153798296. Its totient is φ = 1131174600.

The previous prime is 1142486413. The next prime is 1142486461. The reversal of 1142486447 is 7446842411.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7446842411 = 23 ⋅323775757.

It is a cyclic number.

It is not a de Polignac number, because 1142486447 - 2¹⁶ = 1142420911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142480447) 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, 5655773 + ... + 5655974.

It is an arithmetic number, because the mean of its divisors is an integer number (288449574).

Almost surely, 2^1142486447 is an apocalyptic number.

1142486447 is a deficient number, since it is larger than the sum of its proper divisors (11311849).

1142486447 is a wasteful number, since it uses less digits than its factorization.

1142486447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11311848.

The product of its digits is 172032, while the sum is 41.

The square root of 1142486447 is about 33800.6870788154. The cubic root of 1142486447 is about 1045.4028641364.

The spelling of 1142486447 in words is "one billion, one hundred forty-two million, four hundred eighty-six thousand, four hundred forty-seven".