126521324 has 6 divisors (see below), whose sum is σ = 221412324. Its totient is φ = 63260660.

The previous prime is 126521309. The next prime is 126521333. The reversal of 126521324 is 423125621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 126521293 and 126521302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15815162 + ... + 15815169.

It is an arithmetic number, because the mean of its divisors is an integer number (36902054).

Almost surely, 2^126521324 is an apocalyptic number.

It is an amenable number.

126521324 is a deficient number, since it is larger than the sum of its proper divisors (94891000).

126521324 is a wasteful number, since it uses less digits than its factorization.

126521324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31630335 (or 31630333 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 126521324 is about 11248.1698066841. The cubic root of 126521324 is about 502.0202581202.

Adding to 126521324 its reverse (423125621), we get a palindrome (549646945).

The spelling of 126521324 in words is "one hundred twenty-six million, five hundred twenty-one thousand, three hundred twenty-four".