2145116519 has 32 divisors (see below), whose sum is σ = 2710235136. Its totient is φ = 1652555520.

The previous prime is 2145116497. The next prime is 2145116521. The reversal of 2145116519 is 9156115412.

It is not a de Polignac number, because 2145116519 - 2⁸ = 2145116263 is a prime.

It is a super-2 number, since 2×2145116519² = 9203049760173354722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145136519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 901259 + ... + 903635.

It is an arithmetic number, because the mean of its divisors is an integer number (84694848).

Almost surely, 2^2145116519 is an apocalyptic number.

2145116519 is a deficient number, since it is larger than the sum of its proper divisors (565118617).

2145116519 is a wasteful number, since it uses less digits than its factorization.

2145116519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2655.

The product of its digits is 10800, while the sum is 35.

The square root of 2145116519 is about 46315.4026107946. The cubic root of 2145116519 is about 1289.6849417881.

The spelling of 2145116519 in words is "two billion, one hundred forty-five million, one hundred sixteen thousand, five hundred nineteen".