139457848 has 8 divisors (see below), whose sum is σ = 261483480. Its totient is φ = 69728920.

The previous prime is 139457827. The next prime is 139457849. The reversal of 139457848 is 848754931.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×139457848² = 38896982737582208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139457849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8716108 + ... + 8716123.

It is an arithmetic number, because the mean of its divisors is an integer number (32685435).

Almost surely, 2^139457848 is an apocalyptic number.

It is an amenable number.

139457848 is a deficient number, since it is larger than the sum of its proper divisors (122025632).

139457848 is a wasteful number, since it uses less digits than its factorization.

139457848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17432237 (or 17432233 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 139457848 is about 11809.2272397477. The cubic root of 139457848 is about 518.5782761932.

The spelling of 139457848 in words is "one hundred thirty-nine million, four hundred fifty-seven thousand, eight hundred forty-eight".