126731208 has 32 divisors (see below), whose sum is σ = 317116800. Its totient is φ = 42205248.

The previous prime is 126731203. The next prime is 126731239. The reversal of 126731208 is 802137621.

It is a super-2 number, since 2×126731208² = 32121598162278528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126731201) 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, 39073 + ... + 42191.

It is an arithmetic number, because the mean of its divisors is an integer number (9909900).

Almost surely, 2^126731208 is an apocalyptic number.

It is an amenable number.

126731208 is an abundant number, since it is smaller than the sum of its proper divisors (190385592).

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

126731208 is a wasteful number, since it uses less digits than its factorization.

126731208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4821 (or 4817 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 126731208 is about 11257.4956362417. The cubic root of 126731208 is about 502.2977022876.

Adding to 126731208 its reverse (802137621), we get a palindrome (928868829).

The spelling of 126731208 in words is "one hundred twenty-six million, seven hundred thirty-one thousand, two hundred eight".