126139346 has 4 divisors (see below), whose sum is σ = 189209022. Its totient is φ = 63069672.

The previous prime is 126139267. The next prime is 126139361. The reversal of 126139346 is 643931621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 110019121 + 16120225 = 10489^2 + 4015^2 .

It is a super-2 number, since 2×126139346² = 31822269218615432, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31534835 + ... + 31534838.

Almost surely, 2^126139346 is an apocalyptic number.

126139346 is a deficient number, since it is larger than the sum of its proper divisors (63069676).

126139346 is an equidigital number, since it uses as much as digits as its factorization.

126139346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63069675.

The product of its digits is 23328, while the sum is 35.

The square root of 126139346 is about 11231.1774093369. The cubic root of 126139346 is about 501.5145357309.

The spelling of 126139346 in words is "one hundred twenty-six million, one hundred thirty-nine thousand, three hundred forty-six".