136203253 has 8 divisors (see below), whose sum is σ = 140056448. Its totient is φ = 132359184.

The previous prime is 136203173. The next prime is 136203281. The reversal of 136203253 is 352302631.

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 136203253 - 2⁹ = 136202741 is a prime.

It is a super-2 number, since 2×136203253² = 37102652255564018, 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 (136204253) 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, 37600 + ... + 41062.

It is an arithmetic number, because the mean of its divisors is an integer number (17507056).

Almost surely, 2^136203253 is an apocalyptic number.

It is an amenable number.

136203253 is a deficient number, since it is larger than the sum of its proper divisors (3853195).

136203253 is a wasteful number, since it uses less digits than its factorization.

136203253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 136203253 is about 11670.6149366689. The cubic root of 136203253 is about 514.5123772295.

Adding to 136203253 its reverse (352302631), we get a palindrome (488505884).

The spelling of 136203253 in words is "one hundred thirty-six million, two hundred three thousand, two hundred fifty-three".