2130521545 has 8 divisors (see below), whose sum is σ = 2570909760. Its totient is φ = 1694894640.

The previous prime is 2130521537. The next prime is 2130521597. The reversal of 2130521545 is 5451250312.

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

It is not a de Polignac number, because 2130521545 - 2³ = 2130521537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1189341 + ... + 1191130.

It is an arithmetic number, because the mean of its divisors is an integer number (321363720).

Almost surely, 2^2130521545 is an apocalyptic number.

It is an amenable number.

2130521545 is a deficient number, since it is larger than the sum of its proper divisors (440388215).

2130521545 is a wasteful number, since it uses less digits than its factorization.

2130521545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380655.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2130521545 is about 46157.5729972883. The cubic root of 2130521545 is about 1286.7533575229.

Adding to 2130521545 its reverse (5451250312), we get a palindrome (7581771857).

The spelling of 2130521545 in words is "two billion, one hundred thirty million, five hundred twenty-one thousand, five hundred forty-five".