155230194 has 16 divisors (see below), whose sum is σ = 354811968. Its totient is φ = 44351472.

The previous prime is 155230189. The next prime is 155230199. The reversal of 155230194 is 491032551.

155230194 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (155230189) and next prime (155230199).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (155230199) 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, 1847937 + ... + 1848020.

It is an arithmetic number, because the mean of its divisors is an integer number (22175748).

Almost surely, 2^155230194 is an apocalyptic number.

155230194 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

155230194 is an abundant number, since it is smaller than the sum of its proper divisors (199581774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155230194 is a wasteful number, since it uses less digits than its factorization.

155230194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695969.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 155230194 is about 12459.1409816247. The cubic root of 155230194 is about 537.4343243354.

The spelling of 155230194 in words is "one hundred fifty-five million, two hundred thirty thousand, one hundred ninety-four".