155235254 has 8 divisors (see below), whose sum is σ = 236799720. Its totient is φ = 76302016.

The previous prime is 155235253. The next prime is 155235271. The reversal of 155235254 is 452532551.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 155235254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155235253) 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, 657659 + ... + 657894.

It is an arithmetic number, because the mean of its divisors is an integer number (29599965).

Almost surely, 2^155235254 is an apocalyptic number.

155235254 is a deficient number, since it is larger than the sum of its proper divisors (81564466).

155235254 is a wasteful number, since it uses less digits than its factorization.

155235254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315614.

The product of its digits is 30000, while the sum is 32.

The square root of 155235254 is about 12459.3440437288. The cubic root of 155235254 is about 537.4401638096.

The spelling of 155235254 in words is "one hundred fifty-five million, two hundred thirty-five thousand, two hundred fifty-four".