138470347 has 8 divisors (see below), whose sum is σ = 146064960. Its totient is φ = 130906440.

The previous prime is 138470333. The next prime is 138470351. The reversal of 138470347 is 743074831.

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 138470347 - 2¹⁹ = 137946059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138470047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1908 + ... + 16750.

It is an arithmetic number, because the mean of its divisors is an integer number (18258120).

Almost surely, 2^138470347 is an apocalyptic number.

138470347 is a deficient number, since it is larger than the sum of its proper divisors (7594613).

138470347 is a wasteful number, since it uses less digits than its factorization.

138470347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15353.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 138470347 is about 11767.3423932509. The cubic root of 138470347 is about 517.3513581202.

The spelling of 138470347 in words is "one hundred thirty-eight million, four hundred seventy thousand, three hundred forty-seven".