13770049 has 2 divisors, whose sum is σ = 13770050. Its totient is φ = 13770048.

The previous prime is 13770011. The next prime is 13770061. The reversal of 13770049 is 94007731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9641025 + 4129024 = 3105^2 + 2032^2 .

It is an emirp because it is prime and its reverse (94007731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13770049 - 2¹⁵ = 13737281 is a prime.

It is a super-2 number, since 2×13770049² = 379228498924802, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13770049.

It is not a weakly prime, because it can be changed into another prime (13770149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6885024 + 6885025.

It is an arithmetic number, because the mean of its divisors is an integer number (6885025).

Almost surely, 2^13770049 is an apocalyptic number.

It is an amenable number.

13770049 is a deficient number, since it is larger than the sum of its proper divisors (1).

13770049 is an equidigital number, since it uses as much as digits as its factorization.

13770049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 13770049 is about 3710.8016654087. The cubic root of 13770049 is about 239.6873765190.

The spelling of 13770049 in words is "thirteen million, seven hundred seventy thousand, forty-nine".