126915329 has 4 divisors (see below), whose sum is σ = 126949680. Its totient is φ = 126880980.

The previous prime is 126915323. The next prime is 126915343. The reversal of 126915329 is 923519621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 923519621 = 23 ⋅40153027.

It is a cyclic number.

It is not a de Polignac number, because 126915329 - 2⁸ = 126915073 is a prime.

It is a super-2 number, since 2×126915329² = 32215001470356482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 126915292 and 126915301.

It is not an unprimeable number, because it can be changed into a prime (126915323) 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, 10859 + ... + 19280.

It is an arithmetic number, because the mean of its divisors is an integer number (31737420).

Almost surely, 2^126915329 is an apocalyptic number.

It is an amenable number.

126915329 is a deficient number, since it is larger than the sum of its proper divisors (34351).

126915329 is an equidigital number, since it uses as much as digits as its factorization.

126915329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34350.

The product of its digits is 29160, while the sum is 38.

The square root of 126915329 is about 11265.6703750820. The cubic root of 126915329 is about 502.5408384093.

The spelling of 126915329 in words is "one hundred twenty-six million, nine hundred fifteen thousand, three hundred twenty-nine".