142066505 has 16 divisors (see below), whose sum is σ = 201553920. Its totient is φ = 94057152.

The previous prime is 142066489. The next prime is 142066523. The reversal of 142066505 is 505660241.

142066505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142066505 - 2⁴ = 142066489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68969 + ... + 70998.

It is an arithmetic number, because the mean of its divisors is an integer number (12597120).

Almost surely, 2^142066505 is an apocalyptic number.

It is an amenable number.

142066505 is a deficient number, since it is larger than the sum of its proper divisors (59487415).

142066505 is a wasteful number, since it uses less digits than its factorization.

142066505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140008.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 142066505 is about 11919.1654489733. The cubic root of 142066505 is about 521.7917787385.

The spelling of 142066505 in words is "one hundred forty-two million, sixty-six thousand, five hundred five".