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13355197 is a prime number
BaseRepresentation
bin110010111100…
…100010111101
3221010111212221
4302330202331
511404331242
61154125341
7221342302
oct62744275
927114787
1013355197
1175a1a59
124580851
1329c7aab
141ab90a9
15128c167
hexcbc8bd

13355197 has 2 divisors, whose sum is σ = 13355198. Its totient is φ = 13355196.

The previous prime is 13355161. The next prime is 13355201. The reversal of 13355197 is 79155331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13351716 + 3481 = 3654^2 + 59^2 .

It is an emirp because it is prime and its reverse (79155331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13355197 - 211 = 13353149 is a prime.

It is a super-2 number, since 2×133551972 = 356722573817618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13355107) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6677598 + 6677599.

It is an arithmetic number, because the mean of its divisors is an integer number (6677599).

Almost surely, 213355197 is an apocalyptic number.

It is an amenable number.

13355197 is a deficient number, since it is larger than the sum of its proper divisors (1).

13355197 is an equidigital number, since it uses as much as digits as its factorization.

13355197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14175, while the sum is 34.

The square root of 13355197 is about 3654.4762962701. The cubic root of 13355197 is about 237.2557607354.

The spelling of 13355197 in words is "thirteen million, three hundred fifty-five thousand, one hundred ninety-seven".