139670548 has 12 divisors (see below), whose sum is σ = 247170420. Its totient is φ = 69050432.

The previous prime is 139670533. The next prime is 139670563. The reversal of 139670548 is 845076931.

It is an interprime number because it is at equal distance from previous prime (139670533) and next prime (139670563).

It can be written as a sum of positive squares in 2 ways, for example, as 62441604 + 77228944 = 7902^2 + 8788^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195811 + ... + 196522.

It is an arithmetic number, because the mean of its divisors is an integer number (20597535).

Almost surely, 2^139670548 is an apocalyptic number.

It is an amenable number.

139670548 is a deficient number, since it is larger than the sum of its proper divisors (107499872).

139670548 is a wasteful number, since it uses less digits than its factorization.

139670548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392426 (or 392424 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 139670548 is about 11818.2294782256. The cubic root of 139670548 is about 518.8417860909.

The spelling of 139670548 in words is "one hundred thirty-nine million, six hundred seventy thousand, five hundred forty-eight".