142501040 has 80 divisors (see below), whose sum is σ = 365976576. Its totient is φ = 51168000.

The previous prime is 142501033. The next prime is 142501049. The reversal of 142501040 is 40105241.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (142501049) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 72065 + ... + 74015.

Almost surely, 2^142501040 is an apocalyptic number.

142501040 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 142501040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182988288).

142501040 is an abundant number, since it is smaller than the sum of its proper divisors (223475536).

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

142501040 is a wasteful number, since it uses less digits than its factorization.

142501040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2058 (or 2052 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 142501040 is about 11937.3799470403. The cubic root of 142501040 is about 522.3232340861.

Adding to 142501040 its reverse (40105241), we get a palindrome (182606281).

The spelling of 142501040 in words is "one hundred forty-two million, five hundred one thousand, forty".