13554997 has 2 divisors, whose sum is σ = 13554998. Its totient is φ = 13554996.

The previous prime is 13554949. The next prime is 13555013. The reversal of 13554997 is 79945531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13256881 + 298116 = 3641^2 + 546^2 .

It is a cyclic number.

It is not a de Polignac number, because 13554997 - 2⁷ = 13554869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13554097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6777498 + 6777499.

It is an arithmetic number, because the mean of its divisors is an integer number (6777499).

Almost surely, 2^13554997 is an apocalyptic number.

It is an amenable number.

13554997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13554997 is an equidigital number, since it uses as much as digits as its factorization.

13554997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170100, while the sum is 43.

The square root of 13554997 is about 3681.7111510818. The cubic root of 13554997 is about 238.4330615398.

The spelling of 13554997 in words is "thirteen million, five hundred fifty-four thousand, nine hundred ninety-seven".