142778043 has 24 divisors (see below), whose sum is σ = 217950720. Its totient is φ = 89884080.

The previous prime is 142778029. The next prime is 142778071. The reversal of 142778043 is 340877241.

It is a happy number.

142778043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142778043 - 2⁸ = 142777787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142777989 and 142778007.

It is not an unprimeable number, because it can be changed into a prime (142778023) 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, 11988 + ... + 20718.

It is an arithmetic number, because the mean of its divisors is an integer number (9081280).

Almost surely, 2^142778043 is an apocalyptic number.

142778043 is a deficient number, since it is larger than the sum of its proper divisors (75172677).

142778043 is a wasteful number, since it uses less digits than its factorization.

142778043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8839 (or 8836 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 142778043 is about 11948.9766507429. The cubic root of 142778043 is about 522.6614572420.

The spelling of 142778043 in words is "one hundred forty-two million, seven hundred seventy-eight thousand, forty-three".