126198670 has 32 divisors (see below), whose sum is σ = 245135520. Its totient is φ = 46500480.

The previous prime is 126198661. The next prime is 126198673. The reversal of 126198670 is 76891621.

It is a super-2 number, since 2×126198670² = 31852208619537800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126198673) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107185 + ... + 108355.

It is an arithmetic number, because the mean of its divisors is an integer number (7660485).

Almost surely, 2^126198670 is an apocalyptic number.

126198670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126198670 is a deficient number, since it is larger than the sum of its proper divisors (118936850).

126198670 is a wasteful number, since it uses less digits than its factorization.

126198670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 126198670 is about 11233.8181398846. The cubic root of 126198670 is about 501.5931450529.

The spelling of 126198670 in words is "one hundred twenty-six million, one hundred ninety-eight thousand, six hundred seventy".