142551040 has 48 divisors (see below), whose sum is σ = 342063540. Its totient is φ = 57016320.

The previous prime is 142551029. The next prime is 142551043. The reversal of 142551040 is 40155241.

It can be written as a sum of positive squares in 2 ways, for example, as 142468096 + 82944 = 11936^2 + 288^2 .

It is not an unprimeable number, because it can be changed into a prime (142551043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3280 + ... + 17200.

Almost surely, 2^142551040 is an apocalyptic number.

142551040 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 142551040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171031770).

142551040 is an abundant number, since it is smaller than the sum of its proper divisors (199512500).

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

142551040 is an equidigital number, since it uses as much as digits as its factorization.

142551040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13948 (or 13928 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 142551040 is about 11939.4740252659. The cubic root of 142551040 is about 522.3843169334.

The spelling of 142551040 in words is "one hundred forty-two million, five hundred fifty-one thousand, forty".