155120326 has 16 divisors (see below), whose sum is σ = 244166400. Its totient is φ = 73769608.

The previous prime is 155120323. The next prime is 155120327. The reversal of 155120326 is 623021551.

It is a self number, because there is not a number n which added to its sum of digits gives 155120326.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155120323) 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, 1186 + ... + 17653.

It is an arithmetic number, because the mean of its divisors is an integer number (15260400).

Almost surely, 2^155120326 is an apocalyptic number.

155120326 is a deficient number, since it is larger than the sum of its proper divisors (89046074).

155120326 is a wasteful number, since it uses less digits than its factorization.

155120326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19043.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 155120326 is about 12454.7310689553. The cubic root of 155120326 is about 537.3075002751.

Adding to 155120326 its reverse (623021551), we get a palindrome (778141877).

The spelling of 155120326 in words is "one hundred fifty-five million, one hundred twenty thousand, three hundred twenty-six".