142212701 has 12 divisors (see below), whose sum is σ = 158927292. Its totient is φ = 126797184.

The previous prime is 142212677. The next prime is 142212731. The reversal of 142212701 is 107212241.

It can be written as a sum of positive squares in 2 ways, for example, as 44222500 + 97990201 = 6650^2 + 9899^2 .

It is not a de Polignac number, because 142212701 - 2¹⁰ = 142211677 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 (142212731) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5450 + ... + 17723.

It is an arithmetic number, because the mean of its divisors is an integer number (13243941).

Almost surely, 2^142212701 is an apocalyptic number.

It is an amenable number.

142212701 is a deficient number, since it is larger than the sum of its proper divisors (16714591).

142212701 is a wasteful number, since it uses less digits than its factorization.

142212701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23228 (or 23209 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 142212701 is about 11925.2966839404. The cubic root of 142212701 is about 521.9707036694.

Adding to 142212701 its reverse (107212241), we get a palindrome (249424942).

The spelling of 142212701 in words is "one hundred forty-two million, two hundred twelve thousand, seven hundred one".