142770101 has 4 divisors (see below), whose sum is σ = 142806432. Its totient is φ = 142733772.

The previous prime is 142770091. The next prime is 142770127. The reversal of 142770101 is 101077241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 101077241 = 4099 ⋅24659.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142770101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142770401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11441 + ... + 20406.

It is an arithmetic number, because the mean of its divisors is an integer number (35701608).

Almost surely, 2^142770101 is an apocalyptic number.

It is an amenable number.

142770101 is a deficient number, since it is larger than the sum of its proper divisors (36331).

142770101 is an equidigital number, since it uses as much as digits as its factorization.

142770101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36330.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 142770101 is about 11948.6443164068. The cubic root of 142770101 is about 522.6517660827.

The spelling of 142770101 in words is "one hundred forty-two million, seven hundred seventy thousand, one hundred one".