142629905 has 8 divisors (see below), whose sum is σ = 186715584. Its totient is φ = 103730800.

The previous prime is 142629901. The next prime is 142629911. The reversal of 142629905 is 509926241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142629905 - 2² = 142629901 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142629901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1296581 + ... + 1296690.

It is an arithmetic number, because the mean of its divisors is an integer number (23339448).

Almost surely, 2^142629905 is an apocalyptic number.

It is an amenable number.

142629905 is a deficient number, since it is larger than the sum of its proper divisors (44085679).

142629905 is a wasteful number, since it uses less digits than its factorization.

142629905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2593287.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 142629905 is about 11942.7762685232. The cubic root of 142629905 is about 522.4806338831.

The spelling of 142629905 in words is "one hundred forty-two million, six hundred twenty-nine thousand, nine hundred five".