14540121215 has 4 divisors (see below), whose sum is σ = 17448145464. Its totient is φ = 11632096968.

The previous prime is 14540121137. The next prime is 14540121221. The reversal of 14540121215 is 51212104541.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 14540121215 - 2¹⁶ = 14540055679 is a prime.

It is a super-2 number, since 2×14540121215² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1454012117 + ... + 1454012126.

It is an arithmetic number, because the mean of its divisors is an integer number (4362036366).

Almost surely, 2^14540121215 is an apocalyptic number.

14540121215 is a deficient number, since it is larger than the sum of its proper divisors (2908024249).

14540121215 is an equidigital number, since it uses as much as digits as its factorization.

14540121215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908024248.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 14540121215 its reverse (51212104541), we get a palindrome (65752225756).

The spelling of 14540121215 in words is "fourteen billion, five hundred forty million, one hundred twenty-one thousand, two hundred fifteen".