13437997253 has 2 divisors, whose sum is σ = 13437997254. Its totient is φ = 13437997252.

The previous prime is 13437997229. The next prime is 13437997277. The reversal of 13437997253 is 35279973431.

It is a balanced prime because it is at equal distance from previous prime (13437997229) and next prime (13437997277).

It can be written as a sum of positive squares in only one way, i.e., 7450797124 + 5987200129 = 86318^2 + 77377^2 .

It is an emirp because it is prime and its reverse (35279973431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13437997253 - 2²⁴ = 13421220037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13437997195 and 13437997204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13437997283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6718998626 + 6718998627.

It is an arithmetic number, because the mean of its divisors is an integer number (6718998627).

Almost surely, 2^13437997253 is an apocalyptic number.

It is an amenable number.

13437997253 is a deficient number, since it is larger than the sum of its proper divisors (1).

13437997253 is an equidigital number, since it uses as much as digits as its factorization.

13437997253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4286520, while the sum is 53.

The spelling of 13437997253 in words is "thirteen billion, four hundred thirty-seven million, nine hundred ninety-seven thousand, two hundred fifty-three".