142769705 has 16 divisors (see below), whose sum is σ = 194214720. Its totient is φ = 99880128.

The previous prime is 142769701. The next prime is 142769719. The reversal of 142769705 is 507967241.

It is a cyclic number.

It is not a de Polignac number, because 142769705 - 2² = 142769701 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142769701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56567 + ... + 59036.

It is an arithmetic number, because the mean of its divisors is an integer number (12138420).

Almost surely, 2^142769705 is an apocalyptic number.

It is an amenable number.

142769705 is a deficient number, since it is larger than the sum of its proper divisors (51445015).

142769705 is a wasteful number, since it uses less digits than its factorization.

142769705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115640.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 142769705 is about 11948.6277454777. The cubic root of 142769705 is about 522.6512828576.

The spelling of 142769705 in words is "one hundred forty-two million, seven hundred sixty-nine thousand, seven hundred five".