142745628 has 24 divisors (see below), whose sum is σ = 333501840. Its totient is φ = 47520640.

The previous prime is 142745621. The next prime is 142745663. The reversal of 142745628 is 826547241.

It is a super-2 number, since 2×142745628² = 40752628626228768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142745621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2608 + ... + 17096.

It is an arithmetic number, because the mean of its divisors is an integer number (13895910).

Almost surely, 2^142745628 is an apocalyptic number.

It is an amenable number.

142745628 is an abundant number, since it is smaller than the sum of its proper divisors (190756212).

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

142745628 is a wasteful number, since it uses less digits than its factorization.

142745628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15317 (or 15315 counting only the distinct ones).

The product of its digits is 107520, while the sum is 39.

The square root of 142745628 is about 11947.6201814420. The cubic root of 142745628 is about 522.6219008483.

It can be divided in two parts, 1427 and 45628, that multiplied together give a palindrome (65111156).

The spelling of 142745628 in words is "one hundred forty-two million, seven hundred forty-five thousand, six hundred twenty-eight".