139268361 has 4 divisors (see below), whose sum is σ = 185691152. Its totient is φ = 92845572.

The previous prime is 139268329. The next prime is 139268413. The reversal of 139268361 is 163862931.

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 not a de Polignac number, because 139268361 - 2⁵ = 139268329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139268761) 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, 23211391 + ... + 23211396.

It is an arithmetic number, because the mean of its divisors is an integer number (46422788).

Almost surely, 2^139268361 is an apocalyptic number.

It is an amenable number.

139268361 is a deficient number, since it is larger than the sum of its proper divisors (46422791).

139268361 is an equidigital number, since it uses as much as digits as its factorization.

139268361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46422790.

The product of its digits is 46656, while the sum is 39.

The square root of 139268361 is about 11801.2016761006. The cubic root of 139268361 is about 518.3432986669.

The spelling of 139268361 in words is "one hundred thirty-nine million, two hundred sixty-eight thousand, three hundred sixty-one".