142780970 has 8 divisors (see below), whose sum is σ = 257005764. Its totient is φ = 57112384.

The previous prime is 142780933. The next prime is 142781021. The reversal of 142780970 is 79087241.

It can be written as a sum of positive squares in 2 ways, for example, as 135932281 + 6848689 = 11659^2 + 2617^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7139039 + ... + 7139058.

Almost surely, 2^142780970 is an apocalyptic number.

142780970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142780970 is a deficient number, since it is larger than the sum of its proper divisors (114224794).

142780970 is a wasteful number, since it uses less digits than its factorization.

142780970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14278104.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 142780970 is about 11949.0991292231. The cubic root of 142780970 is about 522.6650287987.

The spelling of 142780970 in words is "one hundred forty-two million, seven hundred eighty thousand, nine hundred seventy".