138174737 has 4 divisors (see below), whose sum is σ = 138211440. Its totient is φ = 138138036.

The previous prime is 138174709. The next prime is 138174769. The reversal of 138174737 is 737471831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 138174737 - 2⁸ = 138174481 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138174694 and 138174703.

It is not an unprimeable number, because it can be changed into a prime (138174787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11963 + ... + 20480.

It is an arithmetic number, because the mean of its divisors is an integer number (34552860).

Almost surely, 2^138174737 is an apocalyptic number.

It is an amenable number.

138174737 is a deficient number, since it is larger than the sum of its proper divisors (36703).

138174737 is an equidigital number, since it uses as much as digits as its factorization.

138174737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36702.

The product of its digits is 98784, while the sum is 41.

The square root of 138174737 is about 11754.7750722845. The cubic root of 138174737 is about 516.9829442399.

The spelling of 138174737 in words is "one hundred thirty-eight million, one hundred seventy-four thousand, seven hundred thirty-seven".