13331497 has 4 divisors (see below), whose sum is σ = 13341520. Its totient is φ = 13321476.

The previous prime is 13331473. The next prime is 13331501. The reversal of 13331497 is 79413331.

13331497 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 79413331 = 19 ⋅4179649.

It is a cyclic number.

It is not a de Polignac number, because 13331497 - 2¹⁹ = 12807209 is a prime.

It is a super-2 number, since 2×13331497² = 355457624522018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13331447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2643 + ... + 5800.

It is an arithmetic number, because the mean of its divisors is an integer number (3335380).

Almost surely, 2^13331497 is an apocalyptic number.

It is an amenable number.

13331497 is a deficient number, since it is larger than the sum of its proper divisors (10023).

13331497 is an equidigital number, since it uses as much as digits as its factorization.

13331497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10022.

The product of its digits is 6804, while the sum is 31.

The square root of 13331497 is about 3651.2322577453. The cubic root of 13331497 is about 237.1153337300.

The spelling of 13331497 in words is "thirteen million, three hundred thirty-one thousand, four hundred ninety-seven".