3515042121 has 8 divisors (see below), whose sum is σ = 4848334080. Its totient is φ = 2262555792.

The previous prime is 3515042107. The next prime is 3515042131. The reversal of 3515042121 is 1212405153.

It is a happy number.

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

It is not a de Polignac number, because 3515042121 - 2⁷ = 3515041993 is a prime.

It is a super-2 number, since 2×3515042121² = 24711042224808357282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3515042091 and 3515042100.

It is not an unprimeable number, because it can be changed into a prime (3515042131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20201305 + ... + 20201478.

It is an arithmetic number, because the mean of its divisors is an integer number (606041760).

Almost surely, 2^3515042121 is an apocalyptic number.

It is an amenable number.

3515042121 is a deficient number, since it is larger than the sum of its proper divisors (1333291959).

3515042121 is a wasteful number, since it uses less digits than its factorization.

3515042121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40402815.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 3515042121 is about 59287.7906570990. The cubic root of 3515042121 is about 1520.4664601671.

Adding to 3515042121 its reverse (1212405153), we get a palindrome (4727447274).

The spelling of 3515042121 in words is "three billion, five hundred fifteen million, forty-two thousand, one hundred twenty-one".