137376427 has 2 divisors, whose sum is σ = 137376428. Its totient is φ = 137376426.

The previous prime is 137376383. The next prime is 137376433. The reversal of 137376427 is 724673731.

It is a strong prime.

It is an emirp because it is prime and its reverse (724673731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137376427 - 2⁷ = 137376299 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137376427.

It is not a weakly prime, because it can be changed into another prime (137371427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68688213 + 68688214.

It is an arithmetic number, because the mean of its divisors is an integer number (68688214).

Almost surely, 2^137376427 is an apocalyptic number.

137376427 is a deficient number, since it is larger than the sum of its proper divisors (1).

137376427 is an equidigital number, since it uses as much as digits as its factorization.

137376427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 148176, while the sum is 40.

The square root of 137376427 is about 11720.7690447342. The cubic root of 137376427 is about 515.9853908389.

It can be divided in two parts, 13737 and 6427, that added together give a square (20164 = 142²).

The spelling of 137376427 in words is "one hundred thirty-seven million, three hundred seventy-six thousand, four hundred twenty-seven".