126640204 has 6 divisors (see below), whose sum is σ = 221620364. Its totient is φ = 63320100.

The previous prime is 126640201. The next prime is 126640207. The reversal of 126640204 is 402046621.

It is an interprime number because it is at equal distance from previous prime (126640201) and next prime (126640207).

It is not an unprimeable number, because it can be changed into a prime (126640201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15830022 + ... + 15830029.

Almost surely, 2^126640204 is an apocalyptic number.

It is an amenable number.

126640204 is a deficient number, since it is larger than the sum of its proper divisors (94980160).

126640204 is a wasteful number, since it uses less digits than its factorization.

126640204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31660055 (or 31660053 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 126640204 is about 11253.4529811965. The cubic root of 126640204 is about 502.1774423909.

Adding to 126640204 its reverse (402046621), we get a palindrome (528686825).

The spelling of 126640204 in words is "one hundred twenty-six million, six hundred forty thousand, two hundred four".