2151035545 has 4 divisors (see below), whose sum is σ = 2581242660. Its totient is φ = 1720828432.

The previous prime is 2151035503. The next prime is 2151035561. The reversal of 2151035545 is 5455301512.

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 861363801 + 1289671744 = 29349^2 + 35912^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151035545 - 2¹⁷ = 2150904473 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 215103550 + ... + 215103559.

It is an arithmetic number, because the mean of its divisors is an integer number (645310665).

Almost surely, 2^2151035545 is an apocalyptic number.

It is an amenable number.

2151035545 is a deficient number, since it is larger than the sum of its proper divisors (430207115).

2151035545 is an equidigital number, since it uses as much as digits as its factorization.

2151035545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430207114.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 2151035545 is about 46379.2577021237. The cubic root of 2151035545 is about 1290.8700628398.

The spelling of 2151035545 in words is "two billion, one hundred fifty-one million, thirty-five thousand, five hundred forty-five".