137727427 has 8 divisors (see below), whose sum is σ = 143847936. Its totient is φ = 131617992.

The previous prime is 137727419. The next prime is 137727439. The reversal of 137727427 is 724727731.

It is a happy number.

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 137727427 - 2³ = 137727419 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 137727427.

It is not an unprimeable number, because it can be changed into a prime (137727407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32188 + ... + 36214.

It is an arithmetic number, because the mean of its divisors is an integer number (17980992).

Almost surely, 2^137727427 is an apocalyptic number.

137727427 is a deficient number, since it is larger than the sum of its proper divisors (6120509).

137727427 is a wasteful number, since it uses less digits than its factorization.

137727427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5537.

The product of its digits is 115248, while the sum is 40.

The square root of 137727427 is about 11735.7329127754. The cubic root of 137727427 is about 516.4244687001.

The spelling of 137727427 in words is "one hundred thirty-seven million, seven hundred twenty-seven thousand, four hundred twenty-seven".