139270449 has 8 divisors (see below), whose sum is σ = 186940800. Its totient is φ = 92223536.

The previous prime is 139270429. The next prime is 139270487. The reversal of 139270449 is 944072931.

139270449 is nontrivially palindromic in base 9.

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 139270449 - 2²³ = 130881841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139270429) 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 7 ways as a sum of consecutive naturals, for example, 155337 + ... + 156230.

It is an arithmetic number, because the mean of its divisors is an integer number (23367600).

Almost surely, 2^139270449 is an apocalyptic number.

It is an amenable number.

139270449 is a deficient number, since it is larger than the sum of its proper divisors (47670351).

139270449 is a wasteful number, since it uses less digits than its factorization.

139270449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311719.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 139270449 is about 11801.2901413362. The cubic root of 139270449 is about 518.3458890982.

The spelling of 139270449 in words is "one hundred thirty-nine million, two hundred seventy thousand, four hundred forty-nine".