142204061 has 8 divisors (see below), whose sum is σ = 147497304. Its totient is φ = 136987200.

The previous prime is 142204057. The next prime is 142204079. The reversal of 142204061 is 160402241.

It can be written as a sum of positive squares in 4 ways, for example, as 83375161 + 58828900 = 9131^2 + 7670^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 142204061 - 2² = 142204057 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 (142204001) 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, 15290 + ... + 22763.

It is an arithmetic number, because the mean of its divisors is an integer number (18437163).

Almost surely, 2^142204061 is an apocalyptic number.

It is an amenable number.

142204061 is a deficient number, since it is larger than the sum of its proper divisors (5293243).

142204061 is a wasteful number, since it uses less digits than its factorization.

142204061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38191.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 142204061 is about 11924.9344232998. The cubic root of 142204061 is about 521.9601328409.

It can be divided in two parts, 14220 and 4061, that added together give a palindrome (18281).

The spelling of 142204061 in words is "one hundred forty-two million, two hundred four thousand, sixty-one".