2153331545 has 4 divisors (see below), whose sum is σ = 2583997860. Its totient is φ = 1722665232.

The previous prime is 2153331533. The next prime is 2153331563. The reversal of 2153331545 is 5451333512.

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 700502089 + 1452829456 = 26467^2 + 38116^2 .

It is a cyclic number.

It is not a de Polignac number, because 2153331545 - 2⁴ = 2153331529 is a prime.

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, 215333150 + ... + 215333159.

It is an arithmetic number, because the mean of its divisors is an integer number (645999465).

Almost surely, 2^2153331545 is an apocalyptic number.

It is an amenable number.

2153331545 is a deficient number, since it is larger than the sum of its proper divisors (430666315).

2153331545 is an equidigital number, since it uses as much as digits as its factorization.

2153331545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430666314.

The product of its digits is 27000, while the sum is 32.

The square root of 2153331545 is about 46404.0035449529. The cubic root of 2153331545 is about 1291.3291880225.

The spelling of 2153331545 in words is "two billion, one hundred fifty-three million, three hundred thirty-one thousand, five hundred forty-five".