13123477 has 4 divisors (see below), whose sum is σ = 13147596. Its totient is φ = 13099360.

The previous prime is 13123463. The next prime is 13123529. The reversal of 13123477 is 77432131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1874161 + 11249316 = 1369^2 + 3354^2 .

It is a cyclic number.

It is not a de Polignac number, because 13123477 - 2⁷ = 13123349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11224 + ... + 12337.

It is an arithmetic number, because the mean of its divisors is an integer number (3286899).

Almost surely, 2^13123477 is an apocalyptic number.

It is an amenable number.

13123477 is a deficient number, since it is larger than the sum of its proper divisors (24119).

13123477 is an equidigital number, since it uses as much as digits as its factorization.

13123477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24118.

The product of its digits is 3528, while the sum is 28.

The square root of 13123477 is about 3622.6339864800. The cubic root of 13123477 is about 235.8755747925.

The spelling of 13123477 in words is "thirteen million, one hundred twenty-three thousand, four hundred seventy-seven".