2145021411 has 8 divisors (see below), whose sum is σ = 3080030800. Its totient is φ = 1320013152.

The previous prime is 2145021383. The next prime is 2145021413. The reversal of 2145021411 is 1141205412.

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

It is not a de Polignac number, because 2145021411 - 2¹⁰ = 2145020387 is a prime.

It is a super-2 number, since 2×2145021411² = 9202233707296861842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145021413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27500236 + ... + 27500313.

It is an arithmetic number, because the mean of its divisors is an integer number (385003850).

Almost surely, 2^2145021411 is an apocalyptic number.

2145021411 is a deficient number, since it is larger than the sum of its proper divisors (935009389).

2145021411 is a wasteful number, since it uses less digits than its factorization.

2145021411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55000565.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 2145021411 is about 46314.3758567467. The cubic root of 2145021411 is about 1289.6658812589.

Adding to 2145021411 its reverse (1141205412), we get a palindrome (3286226823).

The spelling of 2145021411 in words is "two billion, one hundred forty-five million, twenty-one thousand, four hundred eleven".