701949139 has 4 divisors (see below), whose sum is σ = 702124000. Its totient is φ = 701774280.

The previous prime is 701949109. The next prime is 701949161. The reversal of 701949139 is 931949107.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-701949139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 701949095 and 701949104.

It is not an unprimeable number, because it can be changed into a prime (701949109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81264 + ... + 89485.

It is an arithmetic number, because the mean of its divisors is an integer number (175531000).

Almost surely, 2^701949139 is an apocalyptic number.

701949139 is a deficient number, since it is larger than the sum of its proper divisors (174861).

701949139 is a wasteful number, since it uses less digits than its factorization.

701949139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174860.

The product of its (nonzero) digits is 61236, while the sum is 43.

The square root of 701949139 is about 26494.3227692274. The cubic root of 701949139 is about 888.7273562556.

The spelling of 701949139 in words is "seven hundred one million, nine hundred forty-nine thousand, one hundred thirty-nine".