136403073 has 12 divisors (see below), whose sum is σ = 197296788. Its totient is φ = 90810720.

The previous prime is 136403051. The next prime is 136403081. The reversal of 136403073 is 370304631.

It is a happy number.

136403073 is a `hidden beast` number, since 13 + 640 + 3 + 0 + 7 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 38155329 + 98247744 = 6177^2 + 9912^2 .

It is not a de Polignac number, because 136403073 - 2¹⁸ = 136140929 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (136403273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3198 + ... + 16823.

It is an arithmetic number, because the mean of its divisors is an integer number (16441399).

Almost surely, 2^136403073 is an apocalyptic number.

It is an amenable number.

136403073 is a deficient number, since it is larger than the sum of its proper divisors (60893715).

136403073 is a wasteful number, since it uses less digits than its factorization.

136403073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20784 (or 20781 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 27.

The square root of 136403073 is about 11679.1726162430. The cubic root of 136403073 is about 514.7638632143.

The spelling of 136403073 in words is "one hundred thirty-six million, four hundred three thousand, seventy-three".