142844953 has 4 divisors (see below), whose sum is σ = 143700480. Its totient is φ = 141989428.

The previous prime is 142844941. The next prime is 142844957. The reversal of 142844953 is 359448241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 359448241 = 367 ⋅979423.

It is a cyclic number.

It is not a de Polignac number, because 142844953 - 2⁵ = 142844921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142844957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427513 + ... + 427846.

It is an arithmetic number, because the mean of its divisors is an integer number (35925120).

Almost surely, 2^142844953 is an apocalyptic number.

It is an amenable number.

142844953 is a deficient number, since it is larger than the sum of its proper divisors (855527).

142844953 is an equidigital number, since it uses as much as digits as its factorization.

142844953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855526.

The product of its digits is 138240, while the sum is 40.

The square root of 142844953 is about 11951.7761441553. The cubic root of 142844953 is about 522.7430893472.

The spelling of 142844953 in words is "one hundred forty-two million, eight hundred forty-four thousand, nine hundred fifty-three".