155204342 has 8 divisors (see below), whose sum is σ = 234481800. Its totient is φ = 77043744.

The previous prime is 155204333. The next prime is 155204347. The reversal of 155204342 is 243402551.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155204347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278867 + ... + 279422.

It is an arithmetic number, because the mean of its divisors is an integer number (29310225).

Almost surely, 2^155204342 is an apocalyptic number.

155204342 is a deficient number, since it is larger than the sum of its proper divisors (79277458).

155204342 is a wasteful number, since it uses less digits than its factorization.

155204342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558430.

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

The square root of 155204342 is about 12458.1034672216. The cubic root of 155204342 is about 537.4044879504.

Adding to 155204342 its reverse (243402551), we get a palindrome (398606893).

The spelling of 155204342 in words is "one hundred fifty-five million, two hundred four thousand, three hundred forty-two".