142532544 has 224 divisors, whose sum is σ = 486899712. Its totient is φ = 35712000.

The previous prime is 142532531. The next prime is 142532561. The reversal of 142532544 is 445235241.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×142532544² = 40631052198223872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 458149 + ... + 458459.

Almost surely, 2^142532544 is an apocalyptic number.

142532544 is a gapful number since it is divisible by the number (14) 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 142532544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243449856).

142532544 is an abundant number, since it is smaller than the sum of its proper divisors (344367168).

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

142532544 is a wasteful number, since it uses less digits than its factorization.

142532544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 365 counting only the distinct ones).

The product of its digits is 19200, while the sum is 30.

The square root of 142532544 is about 11938.6994266545. The cubic root of 142532544 is about 522.3617228313.

Adding to 142532544 its reverse (445235241), we get a palindrome (587767785).

The spelling of 142532544 in words is "one hundred forty-two million, five hundred thirty-two thousand, five hundred forty-four".