2141522064 has 140 divisors (see below), whose sum is σ = 6786900432. Its totient is φ = 648907200.

The previous prime is 2141522063. The next prime is 2141522069. The reversal of 2141522064 is 4602251412.

2141522064 is a `hidden beast` number, since 21 + 415 + 220 + 6 + 4 = 666.

It is a super-2 number, since 2×2141522064² = 9172233501197640192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2141522063) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 119959 + ... + 136649.

Almost surely, 2^2141522064 is an apocalyptic number.

2141522064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2141522064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3393450216).

2141522064 is an abundant number, since it is smaller than the sum of its proper divisors (4645378368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2141522064 is a wasteful number, since it uses less digits than its factorization.

2141522064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16728 (or 16707 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 2141522064 is about 46276.5822419936. The cubic root of 2141522064 is about 1288.9641874404.

Adding to 2141522064 its reverse (4602251412), we get a palindrome (6743773476).

The spelling of 2141522064 in words is "two billion, one hundred forty-one million, five hundred twenty-two thousand, sixty-four".