137475727 has 2 divisors, whose sum is σ = 137475728. Its totient is φ = 137475726.

The previous prime is 137475677. The next prime is 137475739. The reversal of 137475727 is 727574731.

137475727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 137475727 - 2⁷ = 137475599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137475227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68737863 + 68737864.

It is an arithmetic number, because the mean of its divisors is an integer number (68737864).

Almost surely, 2^137475727 is an apocalyptic number.

137475727 is a deficient number, since it is larger than the sum of its proper divisors (1).

137475727 is an equidigital number, since it uses as much as digits as its factorization.

137475727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288120, while the sum is 43.

The square root of 137475727 is about 11725.0043496794. The cubic root of 137475727 is about 516.1096843830.

The spelling of 137475727 in words is "one hundred thirty-seven million, four hundred seventy-five thousand, seven hundred twenty-seven".