126820072 has 32 divisors (see below), whose sum is σ = 244838880. Its totient is φ = 61548480.

The previous prime is 126820033. The next prime is 126820097. The reversal of 126820072 is 270028621.

It is a self number, because there is not a number n which added to its sum of digits gives 126820072.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58447 + ... + 60577.

It is an arithmetic number, because the mean of its divisors is an integer number (7651215).

Almost surely, 2^126820072 is an apocalyptic number.

It is an amenable number.

126820072 is a deficient number, since it is larger than the sum of its proper divisors (118018808).

126820072 is a wasteful number, since it uses less digits than its factorization.

126820072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353 (or 2349 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 126820072 is about 11261.4418259830. The cubic root of 126820072 is about 502.4150786751.

Adding to 126820072 its reverse (270028621), we get a palindrome (396848693).

The spelling of 126820072 in words is "one hundred twenty-six million, eight hundred twenty thousand, seventy-two".