155445234 has 16 divisors (see below), whose sum is σ = 355303488. Its totient is φ = 44412912.

The previous prime is 155445233. The next prime is 155445239. The reversal of 155445234 is 432544551.

It is a junction number, because it is equal to n+sod(n) for n = 155445195 and 155445204.

It is not an unprimeable number, because it can be changed into a prime (155445233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1850497 + ... + 1850580.

It is an arithmetic number, because the mean of its divisors is an integer number (22206468).

Almost surely, 2^155445234 is an apocalyptic number.

155445234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

155445234 is an abundant number, since it is smaller than the sum of its proper divisors (199858254).

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

155445234 is a wasteful number, since it uses less digits than its factorization.

155445234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3701089.

The product of its digits is 48000, while the sum is 33.

The square root of 155445234 is about 12467.7678034201. The cubic root of 155445234 is about 537.6823786367.

Adding to 155445234 its reverse (432544551), we get a palindrome (587989785).

The spelling of 155445234 in words is "one hundred fifty-five million, four hundred forty-five thousand, two hundred thirty-four".