136303431 has 16 divisors (see below), whose sum is σ = 202480128. Its totient is φ = 80849600.

The previous prime is 136303423. The next prime is 136303441. The reversal of 136303431 is 134303631.

It is a cyclic number.

It is not a de Polignac number, because 136303431 - 2³ = 136303423 is a prime.

It is a super-2 number, since 2×136303431² = 37157250604743522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136303441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42390 + ... + 45491.

It is an arithmetic number, because the mean of its divisors is an integer number (12655008).

Almost surely, 2^136303431 is an apocalyptic number.

136303431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

136303431 is a deficient number, since it is larger than the sum of its proper divisors (66176697).

136303431 is a wasteful number, since it uses less digits than its factorization.

136303431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87942.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 136303431 is about 11674.9060381658. The cubic root of 136303431 is about 514.6384882396.

The spelling of 136303431 in words is "one hundred thirty-six million, three hundred three thousand, four hundred thirty-one".