139525106 has 16 divisors (see below), whose sum is σ = 239916480. Its totient is φ = 59613840.

The previous prime is 139525073. The next prime is 139525109. The reversal of 139525106 is 601525931.

It is a super-2 number, since 2×139525106² = 38934510408622472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139525109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10421 + ... + 19688.

It is an arithmetic number, because the mean of its divisors is an integer number (14994780).

Almost surely, 2^139525106 is an apocalyptic number.

139525106 is a deficient number, since it is larger than the sum of its proper divisors (100391374).

139525106 is a wasteful number, since it uses less digits than its factorization.

139525106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30449.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 139525106 is about 11812.0745849321. The cubic root of 139525106 is about 518.6616297719.

The spelling of 139525106 in words is "one hundred thirty-nine million, five hundred twenty-five thousand, one hundred six".