137374505 has 8 divisors (see below), whose sum is σ = 165704712. Its totient is φ = 109329408.

The previous prime is 137374493. The next prime is 137374513. The reversal of 137374505 is 505473731.

It can be written as a sum of positive squares in 4 ways, for example, as 3463321 + 133911184 = 1861^2 + 11572^2 .

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 137374505 - 2⁶ = 137374441 is a prime.

It is a super-3 number, since 3×137374505³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70214 + ... + 72143.

It is an arithmetic number, because the mean of its divisors is an integer number (20713089).

Almost surely, 2^137374505 is an apocalyptic number.

It is an amenable number.

137374505 is a deficient number, since it is larger than the sum of its proper divisors (28330207).

137374505 is a wasteful number, since it uses less digits than its factorization.

137374505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142555.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 137374505 is about 11720.6870532405. The cubic root of 137374505 is about 515.9829844859.

The spelling of 137374505 in words is "one hundred thirty-seven million, three hundred seventy-four thousand, five hundred five".