139570490 has 8 divisors (see below), whose sum is σ = 251226900. Its totient is φ = 55828192.

The previous prime is 139570471. The next prime is 139570507. The reversal of 139570490 is 94075931.

It is a happy number.

139570490 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 138556441 + 1014049 = 11771^2 + 1007^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6978515 + ... + 6978534.

Almost surely, 2^139570490 is an apocalyptic number.

139570490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139570490 is a deficient number, since it is larger than the sum of its proper divisors (111656410).

139570490 is a wasteful number, since it uses less digits than its factorization.

139570490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13957056.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 139570490 is about 11813.9955137963. The cubic root of 139570490 is about 518.7178595271.

The spelling of 139570490 in words is "one hundred thirty-nine million, five hundred seventy thousand, four hundred ninety".