155130253 has 4 divisors (see below), whose sum is σ = 164255580. Its totient is φ = 146004928.

The previous prime is 155130229. The next prime is 155130263. The reversal of 155130253 is 352031551.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 127283524 + 27846729 = 11282^2 + 5277^2 .

It is a cyclic number.

It is not a de Polignac number, because 155130253 - 2¹⁷ = 154999181 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 (155130263) 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, 4562638 + ... + 4562671.

It is an arithmetic number, because the mean of its divisors is an integer number (41063895).

Almost surely, 2^155130253 is an apocalyptic number.

It is an amenable number.

155130253 is a deficient number, since it is larger than the sum of its proper divisors (9125327).

155130253 is an equidigital number, since it uses as much as digits as its factorization.

155130253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9125326.

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 155130253 is about 12455.1295858373. The cubic root of 155130253 is about 537.3189617814.

The spelling of 155130253 in words is "one hundred fifty-five million, one hundred thirty thousand, two hundred fifty-three".