13120545 has 24 divisors (see below), whose sum is σ = 22165056. Its totient is φ = 6626592.

The previous prime is 13120537. The next prime is 13120553. The reversal of 13120545 is 54502131.

It is an interprime number because it is at equal distance from previous prime (13120537) and next prime (13120553).

It is not a de Polignac number, because 13120545 - 2³ = 13120537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4204 + ... + 6626.

It is an arithmetic number, because the mean of its divisors is an integer number (923544).

Almost surely, 2^13120545 is an apocalyptic number.

13120545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13120545 is a deficient number, since it is larger than the sum of its proper divisors (9044511).

13120545 is a wasteful number, since it uses less digits than its factorization.

13120545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469 (or 2450 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 13120545 is about 3622.2292859508. The cubic root of 13120545 is about 235.8580073268.

Adding to 13120545 its reverse (54502131), we get a palindrome (67622676).

The spelling of 13120545 in words is "thirteen million, one hundred twenty thousand, five hundred forty-five".