155030113 has 4 divisors (see below), whose sum is σ = 177177280. Its totient is φ = 132882948.

The previous prime is 155030107. The next prime is 155030129. The reversal of 155030113 is 311030551.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 155030113 - 2⁹ = 155029601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155030713) 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, 11073573 + ... + 11073586.

It is an arithmetic number, because the mean of its divisors is an integer number (44294320).

Almost surely, 2^155030113 is an apocalyptic number.

It is an amenable number.

155030113 is a deficient number, since it is larger than the sum of its proper divisors (22147167).

155030113 is an equidigital number, since it uses as much as digits as its factorization.

155030113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22147166.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 155030113 is about 12451.1089064388. The cubic root of 155030113 is about 537.2033198143.

Adding to 155030113 its reverse (311030551), we get a palindrome (466060664).

The spelling of 155030113 in words is "one hundred fifty-five million, thirty thousand, one hundred thirteen".