142945552 has 40 divisors (see below), whose sum is σ = 290160000. Its totient is φ = 68090880.

The previous prime is 142945549. The next prime is 142945559. The reversal of 142945552 is 255549241.

It is not an unprimeable number, because it can be changed into a prime (142945559) 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, 113824 + ... + 115072.

It is an arithmetic number, because the mean of its divisors is an integer number (7254000).

Almost surely, 2^142945552 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 142945552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145080000).

142945552 is an abundant number, since it is smaller than the sum of its proper divisors (147214448).

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

142945552 is a wasteful number, since it uses less digits than its factorization.

142945552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591 (or 1585 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 142945552 is about 11955.9839411066. The cubic root of 142945552 is about 522.8657750303.

The spelling of 142945552 in words is "one hundred forty-two million, nine hundred forty-five thousand, five hundred fifty-two".