142645946 has 16 divisors (see below), whose sum is σ = 226777320. Its totient is φ = 67061760.

The previous prime is 142645897. The next prime is 142645957. The reversal of 142645946 is 649546241.

It can be written as a sum of positive squares in 4 ways, for example, as 138886225 + 3759721 = 11785^2 + 1939^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63116 + ... + 65336.

Almost surely, 2^142645946 is an apocalyptic number.

142645946 is a deficient number, since it is larger than the sum of its proper divisors (84131374).

142645946 is a wasteful number, since it uses less digits than its factorization.

142645946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4129.

The product of its digits is 207360, while the sum is 41.

The square root of 142645946 is about 11943.4478271561. The cubic root of 142645946 is about 522.5002202330.

The spelling of 142645946 in words is "one hundred forty-two million, six hundred forty-five thousand, nine hundred forty-six".