139011241 has 4 divisors (see below), whose sum is σ = 145055232. Its totient is φ = 132967252.

The previous prime is 139011233. The next prime is 139011247. The reversal of 139011241 is 142110931.

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 139011241 - 2³ = 139011233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139011247) 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, 3021961 + ... + 3022006.

It is an arithmetic number, because the mean of its divisors is an integer number (36263808).

Almost surely, 2^139011241 is an apocalyptic number.

It is an amenable number.

139011241 is a deficient number, since it is larger than the sum of its proper divisors (6043991).

139011241 is an equidigital number, since it uses as much as digits as its factorization.

139011241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6043990.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 139011241 is about 11790.3028375017. The cubic root of 139011241 is about 518.0241102754.

The spelling of 139011241 in words is "one hundred thirty-nine million, eleven thousand, two hundred forty-one".