126020667 has 4 divisors (see below), whose sum is σ = 168027560. Its totient is φ = 84013776.

The previous prime is 126020663. The next prime is 126020681. The reversal of 126020667 is 766020621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766020621 = 3 ⋅255340207.

It is not a de Polignac number, because 126020667 - 2² = 126020663 is a prime.

It is a super-2 number, since 2×126020667² = 31762417022249778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126020663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21003442 + ... + 21003447.

It is an arithmetic number, because the mean of its divisors is an integer number (42006890).

Almost surely, 2^126020667 is an apocalyptic number.

126020667 is a deficient number, since it is larger than the sum of its proper divisors (42006893).

126020667 is an equidigital number, since it uses as much as digits as its factorization.

126020667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42006892.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 126020667 is about 11225.8927039234. The cubic root of 126020667 is about 501.3572020055.

The spelling of 126020667 in words is "one hundred twenty-six million, twenty thousand, six hundred sixty-seven".