3529730121 has 32 divisors (see below), whose sum is σ = 5081978880. Its totient is φ = 2173632384.

The previous prime is 3529730089. The next prime is 3529730129. The reversal of 3529730121 is 1210379253.

It is not a de Polignac number, because 3529730121 - 2⁵ = 3529730089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3529730129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257380 + ... + 270746.

It is an arithmetic number, because the mean of its divisors is an integer number (158811840).

Almost surely, 2^3529730121 is an apocalyptic number.

It is an amenable number.

3529730121 is a deficient number, since it is larger than the sum of its proper divisors (1552248759).

3529730121 is a wasteful number, since it uses less digits than its factorization.

3529730121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13525.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 3529730121 is about 59411.5318856533. The cubic root of 3529730121 is about 1522.5813306927.

The spelling of 3529730121 in words is "three billion, five hundred twenty-nine million, seven hundred thirty thousand, one hundred twenty-one".