142023155 has 8 divisors (see below), whose sum is σ = 170545200. Its totient is φ = 113540256.

The previous prime is 142023097. The next prime is 142023181. The reversal of 142023155 is 551320241.

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

It is a cyclic number.

It is not a de Polignac number, because 142023155 - 2¹⁴ = 142006771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142023155.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1100 + ... + 16889.

It is an arithmetic number, because the mean of its divisors is an integer number (21318150).

Almost surely, 2^142023155 is an apocalyptic number.

142023155 is a deficient number, since it is larger than the sum of its proper divisors (28522045).

142023155 is a wasteful number, since it uses less digits than its factorization.

142023155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19573.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 142023155 is about 11917.3468104272. The cubic root of 142023155 is about 521.7387003705.

Adding to 142023155 its reverse (551320241), we get a palindrome (693343396).

The spelling of 142023155 in words is "one hundred forty-two million, twenty-three thousand, one hundred fifty-five".