155230253 has 4 divisors (see below), whose sum is σ = 155590848. Its totient is φ = 154869660.

The previous prime is 155230249. The next prime is 155230259. The reversal of 155230253 is 352032551.

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 155230253 - 2² = 155230249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155230259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179651 + ... + 180512.

It is an arithmetic number, because the mean of its divisors is an integer number (38897712).

Almost surely, 2^155230253 is an apocalyptic number.

It is an amenable number.

155230253 is a deficient number, since it is larger than the sum of its proper divisors (360595).

155230253 is an equidigital number, since it uses as much as digits as its factorization.

155230253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360594.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 155230253 is about 12459.1433493640. The cubic root of 155230253 is about 537.4343924249.

The spelling of 155230253 in words is "one hundred fifty-five million, two hundred thirty thousand, two hundred fifty-three".