136287373 has 4 divisors (see below), whose sum is σ = 136680480. Its totient is φ = 135894268.

The previous prime is 136287367. The next prime is 136287407. The reversal of 136287373 is 373782631.

It is a happy number.

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: 373782631 = 307 ⋅1217533.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136287373 is a prime.

It is a super-2 number, since 2×136287373² = 37148496078482258, 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 (136287773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196033 + ... + 196726.

It is an arithmetic number, because the mean of its divisors is an integer number (34170120).

Almost surely, 2^136287373 is an apocalyptic number.

It is an amenable number.

136287373 is a deficient number, since it is larger than the sum of its proper divisors (393107).

136287373 is an equidigital number, since it uses as much as digits as its factorization.

136287373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393106.

The product of its digits is 127008, while the sum is 40.

The square root of 136287373 is about 11674.2183035953. The cubic root of 136287373 is about 514.6182774757.

The spelling of 136287373 in words is "one hundred thirty-six million, two hundred eighty-seven thousand, three hundred seventy-three".