153488645 has 4 divisors (see below), whose sum is σ = 184186380. Its totient is φ = 122790912.

The previous prime is 153488633. The next prime is 153488653. The reversal of 153488645 is 546884351.

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 117115684 + 36372961 = 10822^2 + 6031^2 .

It is a cyclic number.

It is not a de Polignac number, because 153488645 - 2²⁰ = 152440069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 153488596 and 153488605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15348860 + ... + 15348869.

It is an arithmetic number, because the mean of its divisors is an integer number (46046595).

Almost surely, 2^153488645 is an apocalyptic number.

It is an amenable number.

153488645 is a deficient number, since it is larger than the sum of its proper divisors (30697735).

153488645 is an equidigital number, since it uses as much as digits as its factorization.

153488645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30697734.

The product of its digits is 460800, while the sum is 44.

The square root of 153488645 is about 12389.0534343831. The cubic root of 153488645 is about 535.4169108859.

The spelling of 153488645 in words is "one hundred fifty-three million, four hundred eighty-eight thousand, six hundred forty-five".