142501000 has 32 divisors (see below), whose sum is σ = 333454680. Its totient is φ = 57000000.

The previous prime is 142500979. The next prime is 142501003. The reversal of 142501000 is 105241.

It can be written as a sum of positive squares in 4 ways, for example, as 31114084 + 111386916 = 5578^2 + 10554^2 .

It is not an unprimeable number, because it can be changed into a prime (142501003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70251 + ... + 72250.

Almost surely, 2^142501000 is an apocalyptic number.

142501000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142501000 is an abundant number, since it is smaller than the sum of its proper divisors (190953680).

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

142501000 is a wasteful number, since it uses less digits than its factorization.

142501000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142522 (or 142508 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 142501000 is about 11937.3782716307. The cubic root of 142501000 is about 522.3231852141.

Adding to 142501000 its reverse (105241), we get a palindrome (142606241).

The spelling of 142501000 in words is "one hundred forty-two million, five hundred one thousand".