142401450 has 96 divisors (see below), whose sum is σ = 365333760. Its totient is φ = 36691200.

The previous prime is 142401443. The next prime is 142401461. The reversal of 142401450 is 54104241.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 722752 + ... + 722948.

It is an arithmetic number, because the mean of its divisors is an integer number (3805560).

Almost surely, 2^142401450 is an apocalyptic number.

142401450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142401450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182666880).

142401450 is an abundant number, since it is smaller than the sum of its proper divisors (222932310).

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

142401450 is a wasteful number, since it uses less digits than its factorization.

142401450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352 (or 347 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 142401450 is about 11933.2078671244. The cubic root of 142401450 is about 522.2015266852.

Adding to 142401450 its reverse (54104241), we get a palindrome (196505691).

The spelling of 142401450 in words is "one hundred forty-two million, four hundred one thousand, four hundred fifty".