137774161 has 4 divisors (see below), whose sum is σ = 157456192. Its totient is φ = 118092132.

The previous prime is 137774113. The next prime is 137774237. The reversal of 137774161 is 161477731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 137774161 - 2¹¹ = 137772113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137774161.

It is not an unprimeable number, because it can be changed into a prime (137778161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9841005 + ... + 9841018.

It is an arithmetic number, because the mean of its divisors is an integer number (39364048).

Almost surely, 2^137774161 is an apocalyptic number.

It is an amenable number.

137774161 is a deficient number, since it is larger than the sum of its proper divisors (19682031).

137774161 is an equidigital number, since it uses as much as digits as its factorization.

137774161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19682030.

The product of its digits is 24696, while the sum is 37.

The square root of 137774161 is about 11737.7238423810. The cubic root of 137774161 is about 516.4828735566.

The spelling of 137774161 in words is "one hundred thirty-seven million, seven hundred seventy-four thousand, one hundred sixty-one".