136885633 has 4 divisors (see below), whose sum is σ = 144090160. Its totient is φ = 129681108.

The previous prime is 136885621. The next prime is 136885663. The reversal of 136885633 is 336588631.

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, and also an emirpimes, since its reverse is a distinct semiprime: 336588631 = 3187 ⋅105613.

It is a cyclic number.

It is not a de Polignac number, because 136885633 - 2²¹ = 134788481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136885633.

It is not an unprimeable number, because it can be changed into a prime (136885613) 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, 3602235 + ... + 3602272.

It is an arithmetic number, because the mean of its divisors is an integer number (36022540).

Almost surely, 2^136885633 is an apocalyptic number.

It is an amenable number.

136885633 is a deficient number, since it is larger than the sum of its proper divisors (7204527).

136885633 is an equidigital number, since it uses as much as digits as its factorization.

136885633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7204526.

The product of its digits is 311040, while the sum is 43.

The square root of 136885633 is about 11699.8133745800. The cubic root of 136885633 is about 515.3701840931.

It can be divided in two parts, 13688 and 5633, that added together give a square (19321 = 139²).

The spelling of 136885633 in words is "one hundred thirty-six million, eight hundred eighty-five thousand, six hundred thirty-three".