7138685245 has 8 divisors (see below), whose sum is σ = 8618978016. Its totient is φ = 5675911056.

The previous prime is 7138685231. The next prime is 7138685261. The reversal of 7138685245 is 5425868317.

It is a happy number.

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 7138685245 - 2⁹ = 7138684733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4378747 + ... + 4380376.

It is an arithmetic number, because the mean of its divisors is an integer number (1077372252).

Almost surely, 2^7138685245 is an apocalyptic number.

It is an amenable number.

7138685245 is a deficient number, since it is larger than the sum of its proper divisors (1480292771).

7138685245 is a wasteful number, since it uses less digits than its factorization.

7138685245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8759291.

The product of its digits is 1612800, while the sum is 49.

The square root of 7138685245 is about 84490.7405873567. The cubic root of 7138685245 is about 1925.4817702363.

The spelling of 7138685245 in words is "seven billion, one hundred thirty-eight million, six hundred eighty-five thousand, two hundred forty-five".