126072971 has 8 divisors (see below), whose sum is σ = 128038944. Its totient is φ = 124113600.

The previous prime is 126072953. The next prime is 126072977. The reversal of 126072971 is 179270621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 126072971 - 2⁶ = 126072907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126072977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48146 + ... + 50696.

It is an arithmetic number, because the mean of its divisors is an integer number (16004868).

Almost surely, 2^126072971 is an apocalyptic number.

126072971 is a deficient number, since it is larger than the sum of its proper divisors (1965973).

126072971 is an equidigital number, since it uses as much as digits as its factorization.

126072971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3301.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 126072971 is about 11228.2220765355. Note that the first 3 decimals coincide. The cubic root of 126072971 is about 501.4265540165.

The spelling of 126072971 in words is "one hundred twenty-six million, seventy-two thousand, nine hundred seventy-one".