13122045 has 36 divisors (see below), whose sum is σ = 24185460. Its totient is φ = 6580224.

The previous prime is 13122037. The next prime is 13122049. The reversal of 13122045 is 54022131.

It can be written as a sum of positive squares in 6 ways, for example, as 205209 + 12916836 = 453^2 + 3594^2 .

It is not a de Polignac number, because 13122045 - 2³ = 13122037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122049) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12501 + ... + 13509.

Almost surely, 2^13122045 is an apocalyptic number.

13122045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13122045 is a deficient number, since it is larger than the sum of its proper divisors (11063415).

13122045 is a wasteful number, since it uses less digits than its factorization.

13122045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054 (or 1034 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 13122045 is about 3622.4363348443. The cubic root of 13122045 is about 235.8669951021.

Adding to 13122045 its reverse (54022131), we get a palindrome (67144176).

It can be divided in two parts, 131220 and 45, that multiplied together give a square (5904900 = 2430²).

The spelling of 13122045 in words is "thirteen million, one hundred twenty-two thousand, forty-five".