126722023 has 8 divisors (see below), whose sum is σ = 127871568. Its totient is φ = 125577984.

The previous prime is 126722009. The next prime is 126722047. The reversal of 126722023 is 320227621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126722023 is a prime.

It is a super-2 number, since 2×126722023² = 32116942226425058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126722093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54615 + ... + 56887.

It is an arithmetic number, because the mean of its divisors is an integer number (15983946).

Almost surely, 2^126722023 is an apocalyptic number.

126722023 is a deficient number, since it is larger than the sum of its proper divisors (1149545).

126722023 is a wasteful number, since it uses less digits than its factorization.

126722023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 126722023 is about 11257.0876784362. The cubic root of 126722023 is about 502.2855671134.

Adding to 126722023 its reverse (320227621), we get a palindrome (446949644).

The spelling of 126722023 in words is "one hundred twenty-six million, seven hundred twenty-two thousand, twenty-three".