137400847 has 2 divisors, whose sum is σ = 137400848. Its totient is φ = 137400846.

The previous prime is 137400839. The next prime is 137400863. The reversal of 137400847 is 748004731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137400847 - 2³ = 137400839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137400877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68700423 + 68700424.

It is an arithmetic number, because the mean of its divisors is an integer number (68700424).

Almost surely, 2^137400847 is an apocalyptic number.

137400847 is a deficient number, since it is larger than the sum of its proper divisors (1).

137400847 is an equidigital number, since it uses as much as digits as its factorization.

137400847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 137400847 is about 11721.8107389601. The cubic root of 137400847 is about 516.0159628397.

The spelling of 137400847 in words is "one hundred thirty-seven million, four hundred thousand, eight hundred forty-seven".