142394554 has 8 divisors (see below), whose sum is σ = 214871328. Its totient is φ = 70770780.

The previous prime is 142394509. The next prime is 142394591. The reversal of 142394554 is 455493241.

142394554 = 86² + 87² + ... + 753².

It is a happy number.

142394554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212832 + ... + 213499.

It is an arithmetic number, because the mean of its divisors is an integer number (26858916).

Almost surely, 2^142394554 is an apocalyptic number.

142394554 is a deficient number, since it is larger than the sum of its proper divisors (72476774).

142394554 is a wasteful number, since it uses less digits than its factorization.

142394554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426500.

The product of its digits is 86400, while the sum is 37.

The square root of 142394554 is about 11932.9189220408. The cubic root of 142394554 is about 522.1930970897.

The spelling of 142394554 in words is "one hundred forty-two million, three hundred ninety-four thousand, five hundred fifty-four".