142536450 has 192 divisors, whose sum is σ = 434257920. Its totient is φ = 30240000.

The previous prime is 142536431. The next prime is 142536503. The reversal of 142536450 is 54635241.

142536450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×142536450³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 943875 + ... + 944025.

It is an arithmetic number, because the mean of its divisors is an integer number (2261760).

Almost surely, 2^142536450 is an apocalyptic number.

142536450 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 142536450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217128960).

142536450 is an abundant number, since it is smaller than the sum of its proper divisors (291721470).

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

142536450 is a wasteful number, since it uses less digits than its factorization.

142536450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 142536450 is about 11938.8630111916. The cubic root of 142536450 is about 522.3664944346.

The spelling of 142536450 in words is "one hundred forty-two million, five hundred thirty-six thousand, four hundred fifty".