155030945 has 8 divisors (see below), whose sum is σ = 187270080. Its totient is φ = 123202800.

The previous prime is 155030933. The next prime is 155030947. The reversal of 155030945 is 549030551.

155030945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-155030945 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155030947) 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, 101915 + ... + 103424.

It is an arithmetic number, because the mean of its divisors is an integer number (23408760).

Almost surely, 2^155030945 is an apocalyptic number.

It is an amenable number.

155030945 is a deficient number, since it is larger than the sum of its proper divisors (32239135).

155030945 is a wasteful number, since it uses less digits than its factorization.

155030945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205495.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 155030945 is about 12451.1423170728. The cubic root of 155030945 is about 537.2042808154.

The spelling of 155030945 in words is "one hundred fifty-five million, thirty thousand, nine hundred forty-five".