139797741 has 8 divisors (see below), whose sum is σ = 190943424. Its totient is φ = 90925280.

The previous prime is 139797739. The next prime is 139797769. The reversal of 139797741 is 147797931.

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 139797741 - 2¹ = 139797739 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139797731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568161 + ... + 568406.

It is an arithmetic number, because the mean of its divisors is an integer number (23867928).

Almost surely, 2^139797741 is an apocalyptic number.

It is an amenable number.

139797741 is a deficient number, since it is larger than the sum of its proper divisors (51145683).

139797741 is a wasteful number, since it uses less digits than its factorization.

139797741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136611.

The product of its digits is 333396, while the sum is 48.

The square root of 139797741 is about 11823.6094742680. The cubic root of 139797741 is about 518.9992352259. Note that the first 3 decimals are identical.

The spelling of 139797741 in words is "one hundred thirty-nine million, seven hundred ninety-seven thousand, seven hundred forty-one".