139435010 has 64 divisors (see below), whose sum is σ = 296763264. Its totient is φ = 46502400.

The previous prime is 139435007. The next prime is 139435019. The reversal of 139435010 is 10534931.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (139435019) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 401657 + ... + 402003.

It is an arithmetic number, because the mean of its divisors is an integer number (4636926).

Almost surely, 2^139435010 is an apocalyptic number.

139435010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139435010 is an abundant number, since it is smaller than the sum of its proper divisors (157328254).

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

139435010 is a wasteful number, since it uses less digits than its factorization.

139435010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 139435010 is about 11808.2602444221. The cubic root of 139435010 is about 518.5499667138.

Adding to 139435010 its reverse (10534931), we get a palindrome (149969941).

The spelling of 139435010 in words is "one hundred thirty-nine million, four hundred thirty-five thousand, ten".