142067520 has 448 divisors, whose sum is σ = 599846400. Its totient is φ = 31352832.

The previous prime is 142067489. The next prime is 142067539. The reversal of 142067520 is 25760241.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4898866 + ... + 4898894.

Almost surely, 2^142067520 is an apocalyptic number.

142067520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142067520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299923200).

142067520 is an abundant number, since it is smaller than the sum of its proper divisors (457778880).

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

142067520 is an frugal number, since it uses more digits than its factorization.

142067520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 142067520 is about 11919.2080273817. The cubic root of 142067520 is about 521.7930213899.

The spelling of 142067520 in words is "one hundred forty-two million, sixty-seven thousand, five hundred twenty".