1142014891 has 4 divisors (see below), whose sum is σ = 1146753784. Its totient is φ = 1137276000.

The previous prime is 1142014877. The next prime is 1142014897. The reversal of 1142014891 is 1984102411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1984102411 = 1231 ⋅1611781.

It is a cyclic number.

It is not a de Polignac number, because 1142014891 - 2¹¹ = 1142012843 is a prime.

It is a super-2 number, since 2×1142014891² = 2608396022531483762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142014897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2369085 + ... + 2369566.

It is an arithmetic number, because the mean of its divisors is an integer number (286688446).

Almost surely, 2^1142014891 is an apocalyptic number.

1142014891 is a deficient number, since it is larger than the sum of its proper divisors (4738893).

1142014891 is an equidigital number, since it uses as much as digits as its factorization.

1142014891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738892.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 1142014891 is about 33793.7108202103. The cubic root of 1142014891 is about 1045.2590159437.

The spelling of 1142014891 in words is "one billion, one hundred forty-two million, fourteen thousand, eight hundred ninety-one".