139748470 has 16 divisors (see below), whose sum is σ = 251705520. Its totient is φ = 55864224.

The previous prime is 139748461. The next prime is 139748489. The reversal of 139748470 is 74847931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17476 + ... + 24184.

It is an arithmetic number, because the mean of its divisors is an integer number (15731595).

Almost surely, 2^139748470 is an apocalyptic number.

139748470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139748470 is a deficient number, since it is larger than the sum of its proper divisors (111957050).

139748470 is a wasteful number, since it uses less digits than its factorization.

139748470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8799.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 139748470 is about 11821.5257052548. The cubic root of 139748470 is about 518.9382551845.

The spelling of 139748470 in words is "one hundred thirty-nine million, seven hundred forty-eight thousand, four hundred seventy".