155234145 has 16 divisors (see below), whose sum is σ = 270954432. Its totient is φ = 75264960.

The previous prime is 155234141. The next prime is 155234147. The reversal of 155234145 is 541432551.

It is not a de Polignac number, because 155234145 - 2² = 155234141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155234141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470242 + ... + 470571.

It is an arithmetic number, because the mean of its divisors is an integer number (16934652).

Almost surely, 2^155234145 is an apocalyptic number.

155234145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

155234145 is a deficient number, since it is larger than the sum of its proper divisors (115720287).

155234145 is a wasteful number, since it uses less digits than its factorization.

155234145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940832.

The product of its digits is 12000, while the sum is 30.

The square root of 155234145 is about 12459.2995388986. The cubic root of 155234145 is about 537.4388839831.

Adding to 155234145 its reverse (541432551), we get a palindrome (696666696).

The spelling of 155234145 in words is "one hundred fifty-five million, two hundred thirty-four thousand, one hundred forty-five".