126191626 has 24 divisors (see below), whose sum is σ = 208972260. Its totient is φ = 57108480.

The previous prime is 126191617. The next prime is 126191657. The reversal of 126191626 is 626191621.

It can be written as a sum of positive squares in 2 ways, for example, as 76475025 + 49716601 = 8745^2 + 7051^2 .

It is a junction number, because it is equal to n+sod(n) for n = 126191591 and 126191600.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61180 + ... + 63208.

Almost surely, 2^126191626 is an apocalyptic number.

126191626 is a deficient number, since it is larger than the sum of its proper divisors (82780634).

126191626 is a wasteful number, since it uses less digits than its factorization.

126191626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310 (or 2299 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 126191626 is about 11233.5046178831. The cubic root of 126191626 is about 501.5838124457.

The spelling of 126191626 in words is "one hundred twenty-six million, one hundred ninety-one thousand, six hundred twenty-six".