137772379 has 2 divisors, whose sum is σ = 137772380. Its totient is φ = 137772378.

The previous prime is 137772361. The next prime is 137772407. The reversal of 137772379 is 973277731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137772379 - 2⁷ = 137772251 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (137770379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68886189 + 68886190.

It is an arithmetic number, because the mean of its divisors is an integer number (68886190).

Almost surely, 2^137772379 is an apocalyptic number.

137772379 is a deficient number, since it is larger than the sum of its proper divisors (1).

137772379 is an equidigital number, since it uses as much as digits as its factorization.

137772379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388962, while the sum is 46.

The square root of 137772379 is about 11737.6479330401. The cubic root of 137772379 is about 516.4806467810.

The spelling of 137772379 in words is "one hundred thirty-seven million, seven hundred seventy-two thousand, three hundred seventy-nine".