13215058 has 4 divisors (see below), whose sum is σ = 19822590. Its totient is φ = 6607528.

The previous prime is 13215053. The next prime is 13215091. The reversal of 13215058 is 85051231.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 12229009 + 986049 = 3497^2 + 993^2 .

It is not an unprimeable number, because it can be changed into a prime (13215053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3303763 + ... + 3303766.

Almost surely, 2^13215058 is an apocalyptic number.

13215058 is a deficient number, since it is larger than the sum of its proper divisors (6607532).

13215058 is an equidigital number, since it uses as much as digits as its factorization.

13215058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6607531.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 13215058 is about 3635.2521233059. The cubic root of 13215058 is about 236.4229822204.

Adding to 13215058 its reverse (85051231), we get a palindrome (98266289).

The spelling of 13215058 in words is "thirteen million, two hundred fifteen thousand, fifty-eight".