139151941 has 4 divisors (see below), whose sum is σ = 139244832. Its totient is φ = 139059052.

The previous prime is 139151921. The next prime is 139151951. The reversal of 139151941 is 149151931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 139151941 - 2⁷ = 139151813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 139151897 and 139151906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139151921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44161 + ... + 47206.

It is an arithmetic number, because the mean of its divisors is an integer number (34811208).

Almost surely, 2^139151941 is an apocalyptic number.

It is an amenable number.

139151941 is a deficient number, since it is larger than the sum of its proper divisors (92891).

139151941 is an equidigital number, since it uses as much as digits as its factorization.

139151941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92890.

The product of its digits is 4860, while the sum is 34.

The square root of 139151941 is about 11796.2680963091. The cubic root of 139151941 is about 518.1988237617.

The spelling of 139151941 in words is "one hundred thirty-nine million, one hundred fifty-one thousand, nine hundred forty-one".