70138841 has 8 divisors (see below), whose sum is σ = 71679168. Its totient is φ = 68614000.

The previous prime is 70138819. The next prime is 70138843. The reversal of 70138841 is 14883107.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70138841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70138798 and 70138807.

It is not an unprimeable number, because it can be changed into a prime (70138843) 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, 5531 + ... + 13071.

It is an arithmetic number, because the mean of its divisors is an integer number (8959896).

Almost surely, 2^70138841 is an apocalyptic number.

70138841 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

70138841 is a deficient number, since it is larger than the sum of its proper divisors (1540327).

70138841 is a wasteful number, since it uses less digits than its factorization.

70138841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 70138841 is about 8374.8934918601. The cubic root of 70138841 is about 412.4008278274.

The spelling of 70138841 in words is "seventy million, one hundred thirty-eight thousand, eight hundred forty-one".