142953785 has 12 divisors (see below), whose sum is σ = 184864932. Its totient is φ = 105494688.

The previous prime is 142953779. The next prime is 142953823. The reversal of 142953785 is 587359241.

It can be written as a sum of positive squares in 2 ways, for example, as 35188624 + 107765161 = 5932^2 + 10381^2 .

It is not a de Polignac number, because 142953785 - 2²⁴ = 126176569 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95654 + ... + 97136.

It is an arithmetic number, because the mean of its divisors is an integer number (15405411).

Almost surely, 2^142953785 is an apocalyptic number.

It is an amenable number.

142953785 is a deficient number, since it is larger than the sum of its proper divisors (41911147).

142953785 is an frugal number, since it uses more digits than its factorization.

142953785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2984 (or 1501 counting only the distinct ones).

The product of its digits is 302400, while the sum is 44.

The square root of 142953785 is about 11956.3282407267. The cubic root of 142953785 is about 522.8758130511.

The spelling of 142953785 in words is "one hundred forty-two million, nine hundred fifty-three thousand, seven hundred eighty-five".