136630253 has 8 divisors (see below), whose sum is σ = 139138560. Its totient is φ = 134128480.

The previous prime is 136630243. The next prime is 136630261. The reversal of 136630253 is 352036631.

It is a happy number.

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 136630253 - 2¹² = 136626157 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 (136630213) 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, 63668 + ... + 65778.

It is an arithmetic number, because the mean of its divisors is an integer number (17392320).

Almost surely, 2^136630253 is an apocalyptic number.

It is an amenable number.

136630253 is a deficient number, since it is larger than the sum of its proper divisors (2508307).

136630253 is a wasteful number, since it uses less digits than its factorization.

136630253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3267.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 136630253 is about 11688.8944301846. The cubic root of 136630253 is about 515.0494853005.

Adding to 136630253 its reverse (352036631), we get a palindrome (488666884).

The spelling of 136630253 in words is "one hundred thirty-six million, six hundred thirty thousand, two hundred fifty-three".