126620012 has 24 divisors (see below), whose sum is σ = 235872000. Its totient is φ = 59267840.

The previous prime is 126619981. The next prime is 126620057. The reversal of 126620012 is 210026621.

It is a happy number.

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, 8114 + ... + 17862.

It is an arithmetic number, because the mean of its divisors is an integer number (9828000).

Almost surely, 2^126620012 is an apocalyptic number.

It is an amenable number.

126620012 is a deficient number, since it is larger than the sum of its proper divisors (109251988).

126620012 is a wasteful number, since it uses less digits than its factorization.

126620012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9961 (or 9959 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 126620012 is about 11252.5557985731. Note that the first 3 decimals coincide. The cubic root of 126620012 is about 502.1507512729.

Adding to 126620012 its reverse (210026621), we get a palindrome (336646633).

The spelling of 126620012 in words is "one hundred twenty-six million, six hundred twenty thousand, twelve".