142880378 has 4 divisors (see below), whose sum is σ = 214320570. Its totient is φ = 71440188.

The previous prime is 142880369. The next prime is 142880389. The reversal of 142880378 is 873088241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 873088241 = 3947 ⋅221203.

It can be written as a sum of positive squares in only one way, i.e., 130256569 + 12623809 = 11413^2 + 3553^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35720093 + ... + 35720096.

Almost surely, 2^142880378 is an apocalyptic number.

142880378 is a deficient number, since it is larger than the sum of its proper divisors (71440192).

142880378 is an equidigital number, since it uses as much as digits as its factorization.

142880378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71440191.

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 142880378 is about 11953.2580495863. The cubic root of 142880378 is about 522.7862985353.

The spelling of 142880378 in words is "one hundred forty-two million, eight hundred eighty thousand, three hundred seventy-eight".