139447035 has 64 divisors (see below), whose sum is σ = 305141760. Its totient is φ = 58838400.

The previous prime is 139447019. The next prime is 139447057. The reversal of 139447035 is 530744931.

It is not a de Polignac number, because 139447035 - 2⁴ = 139447019 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6610 + ... + 17960.

It is an arithmetic number, because the mean of its divisors is an integer number (4767840).

Almost surely, 2^139447035 is an apocalyptic number.

139447035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139447035 is an abundant number, since it is smaller than the sum of its proper divisors (165694725).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139447035 is a wasteful number, since it uses less digits than its factorization.

139447035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11385 (or 11379 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 139447035 is about 11808.7694109081. The cubic root of 139447035 is about 518.5648730230.

The spelling of 139447035 in words is "one hundred thirty-nine million, four hundred forty-seven thousand, thirty-five".