4145535121 has 16 divisors (see below), whose sum is σ = 5370736000. Its totient is φ = 3107351808.

The previous prime is 4145535103. The next prime is 4145535131. The reversal of 4145535121 is 1215355414.

It is not a de Polignac number, because 4145535121 - 2⁷ = 4145534993 is a prime.

It is a super-2 number, since 2×4145535121² = 34370922878888969282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4145535131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1197096 + ... + 1200553.

It is an arithmetic number, because the mean of its divisors is an integer number (335671000).

Almost surely, 2^4145535121 is an apocalyptic number.

It is an amenable number.

4145535121 is a deficient number, since it is larger than the sum of its proper divisors (1225200879).

4145535121 is a wasteful number, since it uses less digits than its factorization.

4145535121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397688.

The product of its digits is 12000, while the sum is 31.

The square root of 4145535121 is about 64385.8301258903. The cubic root of 4145535121 is about 1606.4240581998.

The spelling of 4145535121 in words is "four billion, one hundred forty-five million, five hundred thirty-five thousand, one hundred twenty-one".