142089485 has 8 divisors (see below), whose sum is σ = 180537336. Its totient is φ = 106984960.

The previous prime is 142089439. The next prime is 142089511. The reversal of 142089485 is 584980241.

It can be written as a sum of positive squares in 4 ways, for example, as 22033636 + 120055849 = 4694^2 + 10957^2 .

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

It is not a de Polignac number, because 142089485 - 2⁶ = 142089421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835736 + ... + 835905.

It is an arithmetic number, because the mean of its divisors is an integer number (22567167).

Almost surely, 2^142089485 is an apocalyptic number.

It is an amenable number.

142089485 is a deficient number, since it is larger than the sum of its proper divisors (38447851).

142089485 is a wasteful number, since it uses less digits than its factorization.

142089485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671663.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 142089485 is about 11920.1294036600. The cubic root of 142089485 is about 521.8199114046.

The spelling of 142089485 in words is "one hundred forty-two million, eighty-nine thousand, four hundred eighty-five".