3540121525 has 12 divisors (see below), whose sum is σ = 4391194144. Its totient is φ = 2831166000.

The previous prime is 3540121499. The next prime is 3540121537. The reversal of 3540121525 is 5251210453.

It is not a de Polignac number, because 3540121525 - 2²⁵ = 3506567093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3540121493 and 3540121502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60130 + ... + 103420.

Almost surely, 2^3540121525 is an apocalyptic number.

It is an amenable number.

3540121525 is a deficient number, since it is larger than the sum of its proper divisors (851072619).

3540121525 is a wasteful number, since it uses less digits than its factorization.

3540121525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46572 (or 46567 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 3540121525 is about 59498.9203683563. The cubic root of 3540121525 is about 1524.0740091974.

Adding to 3540121525 its reverse (5251210453), we get a palindrome (8791331978).

The spelling of 3540121525 in words is "three billion, five hundred forty million, one hundred twenty-one thousand, five hundred twenty-five".