142161241 has 6 divisors (see below), whose sum is σ = 144196826. Its totient is φ = 140154000.

The previous prime is 142161223. The next prime is 142161251.

142161241 is nontrivially palindromic in base 10.

142161241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 129049600 + 13111641 = 11360^2 + 3621^2 .

It is not a de Polignac number, because 142161241 - 2⁷ = 142161113 is a prime.

It is a super-3 number, since 3×142161241³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142161251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9060 + ... + 19141.

Almost surely, 2^142161241 is an apocalyptic number.

It is an amenable number.

142161241 is a deficient number, since it is larger than the sum of its proper divisors (2035585).

142161241 is an frugal number, since it uses more digits than its factorization.

142161241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28343 (or 28272 counting only the distinct ones).

The product of its digits is 384, while the sum is 22.

The square root of 142161241 is about 11923.1388904097. The cubic root of 142161241 is about 521.9077372988.

The spelling of 142161241 in words is "one hundred forty-two million, one hundred sixty-one thousand, two hundred forty-one".