15220235453 has 2 divisors, whose sum is σ = 15220235454. Its totient is φ = 15220235452.

The previous prime is 15220235389. The next prime is 15220235479. The reversal of 15220235453 is 35453202251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13876133209 + 1344102244 = 117797^2 + 36662^2 .

It is a cyclic number.

It is not a de Polignac number, because 15220235453 - 2⁶ = 15220235389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15220232453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7610117726 + 7610117727.

It is an arithmetic number, because the mean of its divisors is an integer number (7610117727).

Almost surely, 2^15220235453 is an apocalyptic number.

It is an amenable number.

15220235453 is a deficient number, since it is larger than the sum of its proper divisors (1).

15220235453 is an equidigital number, since it uses as much as digits as its factorization.

15220235453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 32.

The spelling of 15220235453 in words is "fifteen billion, two hundred twenty million, two hundred thirty-five thousand, four hundred fifty-three".