13150247 has 4 divisors (see below), whose sum is σ = 14345736. Its totient is φ = 11954760.

The previous prime is 13150243. The next prime is 13150279. The reversal of 13150247 is 74205131.

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

It is a cyclic number.

It is not a de Polignac number, because 13150247 - 2² = 13150243 is a prime.

It is a super-2 number, since 2×13150247² = 345857992322018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13150243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 597728 + ... + 597749.

It is an arithmetic number, because the mean of its divisors is an integer number (3586434).

Almost surely, 2^13150247 is an apocalyptic number.

13150247 is a deficient number, since it is larger than the sum of its proper divisors (1195489).

13150247 is a wasteful number, since it uses less digits than its factorization.

13150247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195488.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 13150247 is about 3626.3269295528. The cubic root of 13150247 is about 236.0358499115.

Adding to 13150247 its reverse (74205131), we get a palindrome (87355378).

The spelling of 13150247 in words is "thirteen million, one hundred fifty thousand, two hundred forty-seven".