142146456 has 32 divisors (see below), whose sum is σ = 355829760. Its totient is φ = 47320352.

The previous prime is 142146451. The next prime is 142146457. The reversal of 142146456 is 654641241.

It is a super-2 number, since 2×142146456² = 40411229906719872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142146451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17281 + ... + 24143.

It is an arithmetic number, because the mean of its divisors is an integer number (11119680).

Almost surely, 2^142146456 is an apocalyptic number.

It is an amenable number.

142146456 is an abundant number, since it is smaller than the sum of its proper divisors (213683304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142146456 is a wasteful number, since it uses less digits than its factorization.

142146456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7735 (or 7731 counting only the distinct ones).

The product of its digits is 23040, while the sum is 33.

The square root of 142146456 is about 11922.5188613816. The cubic root of 142146456 is about 521.8896435873.

Adding to 142146456 its reverse (654641241), we get a palindrome (796787697).

The spelling of 142146456 in words is "one hundred forty-two million, one hundred forty-six thousand, four hundred fifty-six".