136985473 has 16 divisors (see below), whose sum is σ = 151200000. Its totient is φ = 123524352.

The previous prime is 136985467. The next prime is 136985477. The reversal of 136985473 is 374589631.

It is a cyclic number.

It is not a de Polignac number, because 136985473 - 2²¹ = 134888321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136985477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67528 + ... + 69526.

It is an arithmetic number, because the mean of its divisors is an integer number (9450000).

Almost surely, 2^136985473 is an apocalyptic number.

It is an amenable number.

136985473 is a deficient number, since it is larger than the sum of its proper divisors (14214527).

136985473 is a wasteful number, since it uses less digits than its factorization.

136985473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2184.

The product of its digits is 544320, while the sum is 46.

The square root of 136985473 is about 11704.0793315835. The cubic root of 136985473 is about 515.4954518156.

The spelling of 136985473 in words is "one hundred thirty-six million, nine hundred eighty-five thousand, four hundred seventy-three".