139962106 has 4 divisors (see below), whose sum is σ = 209943162. Its totient is φ = 69981052.

The previous prime is 139962059. The next prime is 139962133. The reversal of 139962106 is 601269931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 601269931 = 8929 ⋅67339.

It can be written as a sum of positive squares in only one way, i.e., 119793025 + 20169081 = 10945^2 + 4491^2 .

It is a super-2 number, since 2×139962106² = 39178782231910472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34990525 + ... + 34990528.

Almost surely, 2^139962106 is an apocalyptic number.

139962106 is a deficient number, since it is larger than the sum of its proper divisors (69981056).

139962106 is an equidigital number, since it uses as much as digits as its factorization.

139962106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69981055.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 139962106 is about 11830.5581440607. The cubic root of 139962106 is about 519.2025572977.

The spelling of 139962106 in words is "one hundred thirty-nine million, nine hundred sixty-two thousand, one hundred six".