142787241 has 6 divisors (see below), whose sum is σ = 206248250. Its totient is φ = 95191488.

The previous prime is 142787231. The next prime is 142787263.

142787241 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 112975641 + 29811600 = 10629^2 + 5460^2 .

It is not a de Polignac number, because 142787241 - 2¹⁷ = 142656169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142787196 and 142787205.

It is not an unprimeable number, because it can be changed into a prime (142787221) 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, 7932616 + ... + 7932633.

Almost surely, 2^142787241 is an apocalyptic number.

It is an amenable number.

142787241 is a deficient number, since it is larger than the sum of its proper divisors (63461009).

142787241 is a wasteful number, since it uses less digits than its factorization.

142787241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15865255 (or 15865252 counting only the distinct ones).

The product of its digits is 25088, while the sum is 36.

The square root of 142787241 is about 11949.3615310610. The cubic root of 142787241 is about 522.6726805757.

The spelling of 142787241 in words is "one hundred forty-two million, seven hundred eighty-seven thousand, two hundred forty-one".