137949358177 has 4 divisors (see below), whose sum is σ = 137952605700. Its totient is φ = 137946110656.

The previous prime is 137949358133. The next prime is 137949358237. The reversal of 137949358177 is 771853949731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 111705682176 + 26243676001 = 334224^2 + 161999^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137949358177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (137949356177) 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, 1559188 + ... + 1645285.

It is an arithmetic number, because the mean of its divisors is an integer number (34488151425).

Almost surely, 2^137949358177 is an apocalyptic number.

It is an amenable number.

137949358177 is a deficient number, since it is larger than the sum of its proper divisors (3247523).

137949358177 is an equidigital number, since it uses as much as digits as its factorization.

137949358177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3247522.

The product of its digits is 40007520, while the sum is 64.

The spelling of 137949358177 in words is "one hundred thirty-seven billion, nine hundred forty-nine million, three hundred fifty-eight thousand, one hundred seventy-seven".