142423550 has 12 divisors (see below), whose sum is σ = 264907896. Its totient is φ = 56969400.

The previous prime is 142423549. The next prime is 142423577. The reversal of 142423550 is 55324241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1424186 + ... + 1424285.

It is an arithmetic number, because the mean of its divisors is an integer number (22075658).

Almost surely, 2^142423550 is an apocalyptic number.

142423550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

142423550 is a deficient number, since it is larger than the sum of its proper divisors (122484346).

142423550 is a wasteful number, since it uses less digits than its factorization.

142423550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848483 (or 2848478 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 142423550 is about 11934.1338185894. The cubic root of 142423550 is about 522.2285396516.

Adding to 142423550 its reverse (55324241), we get a palindrome (197747791).

The spelling of 142423550 in words is "one hundred forty-two million, four hundred twenty-three thousand, five hundred fifty".