35143121 has 4 divisors (see below), whose sum is σ = 37846452. Its totient is φ = 32439792.

The previous prime is 35143111. The next prime is 35143123. The reversal of 35143121 is 12134153.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6574096 + 28569025 = 2564^2 + 5345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35143121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 35143093 and 35143102.

It is not an unprimeable number, because it can be changed into a prime (35143123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1351646 + ... + 1351671.

It is an arithmetic number, because the mean of its divisors is an integer number (9461613).

Almost surely, 2^35143121 is an apocalyptic number.

It is an amenable number.

35143121 is a deficient number, since it is larger than the sum of its proper divisors (2703331).

35143121 is a wasteful number, since it uses less digits than its factorization.

35143121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703330.

The product of its digits is 360, while the sum is 20.

The square root of 35143121 is about 5928.1633749417. The cubic root of 35143121 is about 327.5518896861.

Adding to 35143121 its reverse (12134153), we get a palindrome (47277274).

The spelling of 35143121 in words is "thirty-five million, one hundred forty-three thousand, one hundred twenty-one".