142660346 has 4 divisors (see below), whose sum is σ = 213990522. Its totient is φ = 71330172.

The previous prime is 142660339. The next prime is 142660363. The reversal of 142660346 is 643066241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 80802121 + 61858225 = 8989^2 + 7865^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35665085 + ... + 35665088.

Almost surely, 2^142660346 is an apocalyptic number.

142660346 is a deficient number, since it is larger than the sum of its proper divisors (71330176).

142660346 is an equidigital number, since it uses as much as digits as its factorization.

142660346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71330175.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 142660346 is about 11944.0506529401. The cubic root of 142660346 is about 522.5178016416.

The spelling of 142660346 in words is "one hundred forty-two million, six hundred sixty thousand, three hundred forty-six".