142070778 has 24 divisors (see below), whose sum is σ = 308350848. Its totient is φ = 47275272.

The previous prime is 142070777. The next prime is 142070821. The reversal of 142070778 is 877070241.

It is not an unprimeable number, because it can be changed into a prime (142070777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4425 + ... + 17427.

It is an arithmetic number, because the mean of its divisors is an integer number (12847952).

Almost surely, 2^142070778 is an apocalyptic number.

142070778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

142070778 is an abundant number, since it is smaller than the sum of its proper divisors (166280070).

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

142070778 is a wasteful number, since it uses less digits than its factorization.

142070778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13618 (or 13615 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 142070778 is about 11919.3446967524. The cubic root of 142070778 is about 521.7970100770.

The spelling of 142070778 in words is "one hundred forty-two million, seventy thousand, seven hundred seventy-eight".