142784754 has 16 divisors (see below), whose sum is σ = 326365248. Its totient is φ = 40795632.

The previous prime is 142784743. The next prime is 142784767. The reversal of 142784754 is 457487241.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 3399637 = 142784754 / (1 + 4 + 2 + 7 + 8 + 4 + 7 + 5 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1699777 + ... + 1699860.

It is an arithmetic number, because the mean of its divisors is an integer number (20397828).

Almost surely, 2^142784754 is an apocalyptic number.

142784754 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

142784754 is an abundant number, since it is smaller than the sum of its proper divisors (183580494).

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

142784754 is a wasteful number, since it uses less digits than its factorization.

142784754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3399649.

The product of its digits is 250880, while the sum is 42.

The square root of 142784754 is about 11949.2574664705. The cubic root of 142784754 is about 522.6696460036.

The spelling of 142784754 in words is "one hundred forty-two million, seven hundred eighty-four thousand, seven hundred fifty-four".