142545542 has 16 divisors (see below), whose sum is σ = 216486432. Its totient is φ = 70387200.

The previous prime is 142545541. The next prime is 142545547. The reversal of 142545542 is 245545241.

It is a junction number, because it is equal to n+sod(n) for n = 142545499 and 142545508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142545541) 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 7 ways as a sum of consecutive naturals, for example, 115943 + ... + 117165.

It is an arithmetic number, because the mean of its divisors is an integer number (13530402).

Almost surely, 2^142545542 is an apocalyptic number.

142545542 is a deficient number, since it is larger than the sum of its proper divisors (73940890).

142545542 is a wasteful number, since it uses less digits than its factorization.

142545542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903.

The product of its digits is 32000, while the sum is 32.

The square root of 142545542 is about 11939.2437783974. The cubic root of 142545542 is about 522.3776009625.

The spelling of 142545542 in words is "one hundred forty-two million, five hundred forty-five thousand, five hundred forty-two".