155440034 has 8 divisors (see below), whose sum is σ = 239461788. Its totient is φ = 75619440.

The previous prime is 155440009. The next prime is 155440037. The reversal of 155440034 is 430044551.

It can be written as a sum of positive squares in 2 ways, for example, as 142730809 + 12709225 = 11947^2 + 3565^2 .

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 = 155439985 and 155440012.

It is not an unprimeable number, because it can be changed into a prime (155440037) 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, 1050197 + ... + 1050344.

Almost surely, 2^155440034 is an apocalyptic number.

155440034 is a deficient number, since it is larger than the sum of its proper divisors (84021754).

155440034 is a wasteful number, since it uses less digits than its factorization.

155440034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100580.

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

The square root of 155440034 is about 12467.5592639458. The cubic root of 155440034 is about 537.6763829998.

Adding to 155440034 its reverse (430044551), we get a palindrome (585484585).

The spelling of 155440034 in words is "one hundred fifty-five million, four hundred forty thousand, thirty-four".