14021593261 has 4 divisors (see below), whose sum is σ = 15100177372. Its totient is φ = 12943009152.

The previous prime is 14021593241. The next prime is 14021593283. The reversal of 14021593261 is 16239512041.

14021593261 = 83730² + 83731².

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7010712900 + 7010880361 = 83730^2 + 83731^2 .

It is a cyclic number.

It is not a de Polignac number, because 14021593261 - 2³³ = 5431658669 is a prime.

It is a super-2 number, since 2×14021593261² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14021593211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539292036 + ... + 539292061.

It is an arithmetic number, because the mean of its divisors is an integer number (3775044343).

Almost surely, 2^14021593261 is an apocalyptic number.

14021593261 is the 83731-st centered square number.

It is an amenable number.

14021593261 is a deficient number, since it is larger than the sum of its proper divisors (1078584111).

14021593261 is a wasteful number, since it uses less digits than its factorization.

14021593261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078584110.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 14021593261 in words is "fourteen billion, twenty-one million, five hundred ninety-three thousand, two hundred sixty-one".