136415245 has 8 divisors (see below), whose sum is σ = 163764216. Its totient is φ = 109088256.

The previous prime is 136415243. The next prime is 136415249. The reversal of 136415245 is 542514631.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1901641 + 134513604 = 1379^2 + 11598^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136415245 - 2¹ = 136415243 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 (136415243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15369 + ... + 22561.

It is an arithmetic number, because the mean of its divisors is an integer number (20470527).

Almost surely, 2^136415245 is an apocalyptic number.

It is an amenable number.

136415245 is a deficient number, since it is larger than the sum of its proper divisors (27348971).

136415245 is an equidigital number, since it uses as much as digits as its factorization.

136415245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10991.

The product of its digits is 14400, while the sum is 31.

The square root of 136415245 is about 11679.6937031756. The cubic root of 136415245 is about 514.7791745003.

Adding to 136415245 its reverse (542514631), we get a palindrome (678929876).

The spelling of 136415245 in words is "one hundred thirty-six million, four hundred fifteen thousand, two hundred forty-five".