139855462 has 4 divisors (see below), whose sum is σ = 209783196. Its totient is φ = 69927730.

The previous prime is 139855453. The next prime is 139855489. The reversal of 139855462 is 264558931.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 34963864 + ... + 34963867.

It is an arithmetic number, because the mean of its divisors is an integer number (52445799).

Almost surely, 2^139855462 is an apocalyptic number.

139855462 is a deficient number, since it is larger than the sum of its proper divisors (69927734).

139855462 is an equidigital number, since it uses as much as digits as its factorization.

139855462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69927733.

The product of its digits is 259200, while the sum is 43.

The square root of 139855462 is about 11826.0501436447. The cubic root of 139855462 is about 519.0706551516.

The spelling of 139855462 in words is "one hundred thirty-nine million, eight hundred fifty-five thousand, four hundred sixty-two".