136078901 has 4 divisors (see below), whose sum is σ = 155518752. Its totient is φ = 116639052.

The previous prime is 136078883. The next prime is 136078903. The reversal of 136078901 is 109870631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136078901 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136078903) 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, 9719915 + ... + 9719928.

It is an arithmetic number, because the mean of its divisors is an integer number (38879688).

Almost surely, 2^136078901 is an apocalyptic number.

It is an amenable number.

136078901 is a deficient number, since it is larger than the sum of its proper divisors (19439851).

136078901 is an equidigital number, since it uses as much as digits as its factorization.

136078901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19439850.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 136078901 is about 11665.2861516553. The cubic root of 136078901 is about 514.3557482631.

The spelling of 136078901 in words is "one hundred thirty-six million, seventy-eight thousand, nine hundred one".