137540827 has 2 divisors, whose sum is σ = 137540828. Its totient is φ = 137540826.

The previous prime is 137540807. The next prime is 137540899. The reversal of 137540827 is 728045731.

137540827 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137540827 is a prime.

It is not a weakly prime, because it can be changed into another prime (137540807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68770413 + 68770414.

It is an arithmetic number, because the mean of its divisors is an integer number (68770414).

Almost surely, 2^137540827 is an apocalyptic number.

137540827 is a deficient number, since it is larger than the sum of its proper divisors (1).

137540827 is an equidigital number, since it uses as much as digits as its factorization.

137540827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 137540827 is about 11727.7801394808. The cubic root of 137540827 is about 516.1911374005.

The spelling of 137540827 in words is "one hundred thirty-seven million, five hundred forty thousand, eight hundred twenty-seven".