126197650 has 12 divisors (see below), whose sum is σ = 234727722. Its totient is φ = 50479040.

The previous prime is 126197629. The next prime is 126197653. The reversal of 126197650 is 56791621.

It can be written as a sum of positive squares in 3 ways, for example, as 122522761 + 3674889 = 11069^2 + 1917^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126197653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1261927 + ... + 1262026.

Almost surely, 2^126197650 is an apocalyptic number.

126197650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126197650 is a deficient number, since it is larger than the sum of its proper divisors (108530072).

126197650 is a wasteful number, since it uses less digits than its factorization.

126197650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523965 (or 2523960 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 126197650 is about 11233.7727411587. The cubic root of 126197650 is about 501.5917936747.

The spelling of 126197650 in words is "one hundred twenty-six million, one hundred ninety-seven thousand, six hundred fifty".