155430045 has 36 divisors (see below), whose sum is σ = 273829140. Its totient is φ = 81548544.

The previous prime is 155430029. The next prime is 155430047. The reversal of 155430045 is 540034551.

155430045 is nontrivially palindromic in base 14.

155430045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 24235929 + 131194116 = 4923^2 + 11454^2 .

It is not a de Polignac number, because 155430045 - 2⁴ = 155430029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155430047) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 788887 + ... + 789083.

It is an arithmetic number, because the mean of its divisors is an integer number (7606365).

Almost surely, 2^155430045 is an apocalyptic number.

155430045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155430045 is a deficient number, since it is larger than the sum of its proper divisors (118399095).

155430045 is an equidigital number, since it uses as much as digits as its factorization.

155430045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 155430045 is about 12467.1586578498. The cubic root of 155430045 is about 537.6648652367.

Adding to 155430045 its reverse (540034551), we get a palindrome (695464596).

The spelling of 155430045 in words is "one hundred fifty-five million, four hundred thirty thousand, forty-five".