139110941 has 4 divisors (see below), whose sum is σ = 143907900. Its totient is φ = 134313984.

The previous prime is 139110931. The next prime is 139110943. The reversal of 139110941 is 149011931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 149011931 = 2593 ⋅57467.

It can be written as a sum of positive squares in 2 ways, for example, as 108264025 + 30846916 = 10405^2 + 5554^2 .

It is a cyclic number.

It is not a de Polignac number, because 139110941 - 2¹⁰ = 139109917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 4796929 = 139110941 / (1 + 3 + 9 + 1 + 1 + 0 + 9 + 4 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139110943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2398436 + ... + 2398493.

It is an arithmetic number, because the mean of its divisors is an integer number (35976975).

Almost surely, 2^139110941 is an apocalyptic number.

It is an amenable number.

139110941 is a deficient number, since it is larger than the sum of its proper divisors (4796959).

139110941 is an equidigital number, since it uses as much as digits as its factorization.

139110941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4796958.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 139110941 is about 11794.5301305308. The cubic root of 139110941 is about 518.1479243908.

The spelling of 139110941 in words is "one hundred thirty-nine million, one hundred ten thousand, nine hundred forty-one".