15414021213245 has 4 divisors (see below), whose sum is σ = 18496825455900. Its totient is φ = 12331216970592.

The previous prime is 15414021213223. The next prime is 15414021213337. The reversal of 15414021213245 is 54231212041451.

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 5480341866169 + 9933679347076 = 2341013^2 + 3151774^2 .

It is a cyclic number.

It is not a de Polignac number, because 15414021213245 - 2¹⁰ = 15414021212221 is a prime.

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, 1541402121320 + ... + 1541402121329.

It is an arithmetic number, because the mean of its divisors is an integer number (4624206363975).

Almost surely, 2^{15414021213245} is an apocalyptic number.

It is an amenable number.

15414021213245 is a deficient number, since it is larger than the sum of its proper divisors (3082804242655).

15414021213245 is an equidigital number, since it uses as much as digits as its factorization.

15414021213245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3082804242654.

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 15414021213245 its reverse (54231212041451), we get a palindrome (69645233254696).

The spelling of 15414021213245 in words is "fifteen trillion, four hundred fourteen billion, twenty-one million, two hundred thirteen thousand, two hundred forty-five".