139448495 has 4 divisors (see below), whose sum is σ = 167338200. Its totient is φ = 111558792.

The previous prime is 139448489. The next prime is 139448497. The reversal of 139448495 is 594844931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139448495 - 2⁴ = 139448479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139448497) 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, 13944845 + ... + 13944854.

It is an arithmetic number, because the mean of its divisors is an integer number (41834550).

Almost surely, 2^139448495 is an apocalyptic number.

139448495 is a deficient number, since it is larger than the sum of its proper divisors (27889705).

139448495 is an equidigital number, since it uses as much as digits as its factorization.

139448495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27889704.

The product of its digits is 622080, while the sum is 47.

The square root of 139448495 is about 11808.8312292115. The cubic root of 139448495 is about 518.5666827951.

The spelling of 139448495 in words is "one hundred thirty-nine million, four hundred forty-eight thousand, four hundred ninety-five".