155222342 has 32 divisors (see below), whose sum is σ = 270545184. Its totient is φ = 66009600.

The previous prime is 155222323. The next prime is 155222357. The reversal of 155222342 is 243222551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66548 + ... + 68840.

It is an arithmetic number, because the mean of its divisors is an integer number (8454537).

Almost surely, 2^155222342 is an apocalyptic number.

155222342 is a deficient number, since it is larger than the sum of its proper divisors (115322842).

155222342 is a wasteful number, since it uses less digits than its factorization.

155222342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504.

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

The square root of 155222342 is about 12458.8258676330. The cubic root of 155222342 is about 537.4252625128.

Adding to 155222342 its reverse (243222551), we get a palindrome (398444893).

The spelling of 155222342 in words is "one hundred fifty-five million, two hundred twenty-two thousand, three hundred forty-two".