126525073 has 4 divisors (see below), whose sum is σ = 126558180. Its totient is φ = 126491968.

The previous prime is 126525017. The next prime is 126525079. The reversal of 126525073 is 370525621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 370525621 = 8269 ⋅44809.

It can be written as a sum of positive squares in 2 ways, for example, as 10036224 + 116488849 = 3168^2 + 10793^2 .

It is a cyclic number.

It is not a de Polignac number, because 126525073 - 2¹³ = 126516881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126525079) 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, 9940 + ... + 18757.

It is an arithmetic number, because the mean of its divisors is an integer number (31639545).

Almost surely, 2^126525073 is an apocalyptic number.

It is an amenable number.

126525073 is a deficient number, since it is larger than the sum of its proper divisors (33107).

126525073 is an equidigital number, since it uses as much as digits as its factorization.

126525073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33106.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 126525073 is about 11248.3364547830. The cubic root of 126525073 is about 502.0252165870.

The spelling of 126525073 in words is "one hundred twenty-six million, five hundred twenty-five thousand, seventy-three".