165555142 has 8 divisors (see below), whose sum is σ = 256896000. Its totient is φ = 79923144.

The previous prime is 165555133. The next prime is 165555149. The reversal of 165555142 is 241555561.

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

It is a junction number, because it is equal to n+sod(n) for n = 165555098 and 165555107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165555149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1427142 + ... + 1427257.

It is an arithmetic number, because the mean of its divisors is an integer number (32112000).

Almost surely, 2^165555142 is an apocalyptic number.

165555142 is a deficient number, since it is larger than the sum of its proper divisors (91340858).

165555142 is a wasteful number, since it uses less digits than its factorization.

165555142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854430.

The product of its digits is 30000, while the sum is 34.

The square root of 165555142 is about 12866.8233064731. The cubic root of 165555142 is about 549.0950871736.

The spelling of 165555142 in words is "one hundred sixty-five million, five hundred fifty-five thousand, one hundred forty-two".