126587121 has 8 divisors (see below), whose sum is σ = 172374144. Its totient is φ = 82595760.

The previous prime is 126587113. The next prime is 126587143. The reversal of 126587121 is 121785621.

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

It is not a de Polignac number, because 126587121 - 2³ = 126587113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126587171) 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, 448750 + ... + 449031.

It is an arithmetic number, because the mean of its divisors is an integer number (21546768).

Almost surely, 2^126587121 is an apocalyptic number.

It is an amenable number.

126587121 is a deficient number, since it is larger than the sum of its proper divisors (45787023).

126587121 is an equidigital number, since it uses as much as digits as its factorization.

126587121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897831.

The product of its digits is 6720, while the sum is 33.

The square root of 126587121 is about 11251.0942134532. The cubic root of 126587121 is about 502.1072677023.

The spelling of 126587121 in words is "one hundred twenty-six million, five hundred eighty-seven thousand, one hundred twenty-one".