2051535145 has 8 divisors (see below), whose sum is σ = 2685646080. Its totient is φ = 1492025520.

The previous prime is 2051535067. The next prime is 2051535149. The reversal of 2051535145 is 5415351502.

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

It is not a de Polignac number, because 2051535145 - 2¹⁵ = 2051502377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2051535149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18650265 + ... + 18650374.

It is an arithmetic number, because the mean of its divisors is an integer number (335705760).

Almost surely, 2^2051535145 is an apocalyptic number.

It is an amenable number.

2051535145 is a deficient number, since it is larger than the sum of its proper divisors (634110935).

2051535145 is a wasteful number, since it uses less digits than its factorization.

2051535145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37300655.

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

The square root of 2051535145 is about 45293.8753585957. The cubic root of 2051535145 is about 1270.6511107307.

Adding to 2051535145 its reverse (5415351502), we get a palindrome (7466886647).

The spelling of 2051535145 in words is "two billion, fifty-one million, five hundred thirty-five thousand, one hundred forty-five".