15214204639 has 2 divisors, whose sum is σ = 15214204640. Its totient is φ = 15214204638.

The previous prime is 15214204597. The next prime is 15214204697. The reversal of 15214204639 is 93640241251.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15214204639 - 2⁹ = 15214204127 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15214204598 and 15214204607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15214204139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7607102319 + 7607102320.

It is an arithmetic number, because the mean of its divisors is an integer number (7607102320).

Almost surely, 2^15214204639 is an apocalyptic number.

15214204639 is a deficient number, since it is larger than the sum of its proper divisors (1).

15214204639 is an equidigital number, since it uses as much as digits as its factorization.

15214204639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The spelling of 15214204639 in words is "fifteen billion, two hundred fourteen million, two hundred four thousand, six hundred thirty-nine".