181245153 has 8 divisors (see below), whose sum is σ = 241742016. Its totient is φ = 120789200.

The previous prime is 181245139. The next prime is 181245167. The reversal of 181245153 is 351542181.

181245153 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 (181245139) and next prime (181245167).

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

It is a cyclic number.

It is not a de Polignac number, because 181245153 - 2⁴ = 181245137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 181245153.

It is not an unprimeable number, because it can be changed into a prime (181245173) 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, 2308 + ... + 19178.

It is an arithmetic number, because the mean of its divisors is an integer number (30217752).

Almost surely, 2^181245153 is an apocalyptic number.

It is an amenable number.

181245153 is a deficient number, since it is larger than the sum of its proper divisors (60496863).

181245153 is a wasteful number, since it uses less digits than its factorization.

181245153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20455.

The product of its digits is 4800, while the sum is 30.

The square root of 181245153 is about 13462.7320035719. The cubic root of 181245153 is about 565.9205532627.

The spelling of 181245153 in words is "one hundred eighty-one million, two hundred forty-five thousand, one hundred fifty-three".