136519973 has 8 divisors (see below), whose sum is σ = 146306688. Its totient is φ = 127054224.

The previous prime is 136519951. The next prime is 136519991. The reversal of 136519973 is 379915631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136519973 - 2¹² = 136515877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136509973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79361 + ... + 81062.

It is an arithmetic number, because the mean of its divisors is an integer number (18288336).

Almost surely, 2^136519973 is an apocalyptic number.

It is an amenable number.

136519973 is a deficient number, since it is larger than the sum of its proper divisors (9786715).

136519973 is a wasteful number, since it uses less digits than its factorization.

136519973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160483.

The product of its digits is 153090, while the sum is 44.

The square root of 136519973 is about 11684.1761797741. The cubic root of 136519973 is about 514.9108753303.

The spelling of 136519973 in words is "one hundred thirty-six million, five hundred nineteen thousand, nine hundred seventy-three".