142047550 has 12 divisors (see below), whose sum is σ = 264208536. Its totient is φ = 56819000.

The previous prime is 142047497. The next prime is 142047557. The reversal of 142047550 is 55740241.

142047550 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142047550² = 40355012922005000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142047557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1420426 + ... + 1420525.

It is an arithmetic number, because the mean of its divisors is an integer number (22017378).

Almost surely, 2^142047550 is an apocalyptic number.

142047550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142047550 is a deficient number, since it is larger than the sum of its proper divisors (122160986).

142047550 is a wasteful number, since it uses less digits than its factorization.

142047550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840963 (or 2840958 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 142047550 is about 11918.3702744964. The cubic root of 142047550 is about 521.7685712906.

Adding to 142047550 its reverse (55740241), we get a palindrome (197787791).

The spelling of 142047550 in words is "one hundred forty-two million, forty-seven thousand, five hundred fifty".