142453446 has 16 divisors (see below), whose sum is σ = 285150000. Its totient is φ = 47443968.

The previous prime is 142453433. The next prime is 142453447. The reversal of 142453446 is 644354241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142453447) 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, 2011 + ... + 16998.

It is an arithmetic number, because the mean of its divisors is an integer number (17821875).

Almost surely, 2^142453446 is an apocalyptic number.

142453446 is an abundant number, since it is smaller than the sum of its proper divisors (142696554).

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

142453446 is a wasteful number, since it uses less digits than its factorization.

142453446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20263.

The product of its digits is 46080, while the sum is 33.

The square root of 142453446 is about 11935.3862945445. The cubic root of 142453446 is about 522.2650772704.

The spelling of 142453446 in words is "one hundred forty-two million, four hundred fifty-three thousand, four hundred forty-six".