142780929 has 8 divisors (see below), whose sum is σ = 193056192. Its totient is φ = 93846480.

The previous prime is 142780873. The next prime is 142780933. The reversal of 142780929 is 929087241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142780929 - 2¹³ = 142772737 is a prime.

It is a super-2 number, since 2×142780929² = 40772787372206082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142780129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334954 + ... + 335379.

It is an arithmetic number, because the mean of its divisors is an integer number (24132024).

Almost surely, 2^142780929 is an apocalyptic number.

It is an amenable number.

142780929 is a deficient number, since it is larger than the sum of its proper divisors (50275263).

142780929 is an equidigital number, since it uses as much as digits as its factorization.

142780929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670407.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 142780929 is about 11949.0974136125. The cubic root of 142780929 is about 522.6649787704.

The spelling of 142780929 in words is "one hundred forty-two million, seven hundred eighty thousand, nine hundred twenty-nine".