137473805 has 8 divisors (see below), whose sum is σ = 188535552. Its totient is φ = 94267728.

The previous prime is 137473801. The next prime is 137473823. The reversal of 137473805 is 508374731.

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 137473805 - 2² = 137473801 is a prime.

It is a super-2 number, since 2×137473805² = 37798094122356050, 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 (137473801) 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 7 ways as a sum of consecutive naturals, for example, 1963877 + ... + 1963946.

It is an arithmetic number, because the mean of its divisors is an integer number (23566944).

Almost surely, 2^137473805 is an apocalyptic number.

It is an amenable number.

137473805 is a deficient number, since it is larger than the sum of its proper divisors (51061747).

137473805 is an equidigital number, since it uses as much as digits as its factorization.

137473805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3927835.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 137473805 is about 11724.9223878028. The cubic root of 137473805 is about 516.1072791888.

The spelling of 137473805 in words is "one hundred thirty-seven million, four hundred seventy-three thousand, eight hundred five".