155405346 has 16 divisors (see below), whose sum is σ = 310999584. Its totient is φ = 51770304.

The previous prime is 155405339. The next prime is 155405363. The reversal of 155405346 is 643504551.

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, 4266 + ... + 18138.

It is an arithmetic number, because the mean of its divisors is an integer number (19437474).

Almost surely, 2^155405346 is an apocalyptic number.

155405346 is an abundant number, since it is smaller than the sum of its proper divisors (155594238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155405346 is a wasteful number, since it uses less digits than its factorization.

155405346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15745.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 155405346 is about 12466.1680559826. The cubic root of 155405346 is about 537.6363840680.

Adding to 155405346 its reverse (643504551), we get a palindrome (798909897).

The spelling of 155405346 in words is "one hundred fifty-five million, four hundred five thousand, three hundred forty-six".