142747241 has 24 divisors (see below), whose sum is σ = 179693640. Its totient is φ = 112396032.

The previous prime is 142747211. The next prime is 142747289.

142747241 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 7722841 + 135024400 = 2779^2 + 11620^2 .

It is not a de Polignac number, because 142747241 - 2¹⁴ = 142730857 is a prime.

It is a super-2 number, since 2×142747241² = 40753549626224162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142747198 and 142747207.

It is not an unprimeable number, because it can be changed into a prime (142747211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176045 + ... + 176853.

It is an arithmetic number, because the mean of its divisors is an integer number (7487235).

Almost surely, 2^142747241 is an apocalyptic number.

It is an amenable number.

142747241 is a deficient number, since it is larger than the sum of its proper divisors (36946399).

142747241 is a wasteful number, since it uses less digits than its factorization.

142747241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113 (or 1106 counting only the distinct ones).

The product of its digits is 12544, while the sum is 32.

The square root of 142747241 is about 11947.6876842341. The cubic root of 142747241 is about 522.6238693522.

The spelling of 142747241 in words is "one hundred forty-two million, seven hundred forty-seven thousand, two hundred forty-one".