142015432 has 48 divisors (see below), whose sum is σ = 300939840. Its totient is φ = 62682048.

The previous prime is 142015417. The next prime is 142015439. The reversal of 142015432 is 234510241.

It is a super-2 number, since 2×142015432² = 40336765852293248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142015439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28813 + ... + 33379.

It is an arithmetic number, because the mean of its divisors is an integer number (6269580).

Almost surely, 2^142015432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142015432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150469920).

142015432 is an abundant number, since it is smaller than the sum of its proper divisors (158924408).

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

142015432 is a wasteful number, since it uses less digits than its factorization.

142015432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4622 (or 4605 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 142015432 is about 11917.0227825577. The cubic root of 142015432 is about 521.7292430840.

Adding to 142015432 its reverse (234510241), we get a palindrome (376525673).

The spelling of 142015432 in words is "one hundred forty-two million, fifteen thousand, four hundred thirty-two".