2051143545 has 32 divisors (see below), whose sum is σ = 3614966784. Its totient is φ = 984830400.

The previous prime is 2051143543. The next prime is 2051143547. The reversal of 2051143545 is 5453411502.

It is an interprime number because it is at equal distance from previous prime (2051143543) and next prime (2051143547).

It is not a de Polignac number, because 2051143545 - 2¹ = 2051143543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2051143543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43351 + ... + 77340.

It is an arithmetic number, because the mean of its divisors is an integer number (112967712).

Almost surely, 2^2051143545 is an apocalyptic number.

It is an amenable number.

2051143545 is a deficient number, since it is larger than the sum of its proper divisors (1563823239).

2051143545 is a wasteful number, since it uses less digits than its factorization.

2051143545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120813.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 2051143545 is about 45289.5522720196. The cubic root of 2051143545 is about 1270.5702576779.

The spelling of 2051143545 in words is "two billion, fifty-one million, one hundred forty-three thousand, five hundred forty-five".