2135142452 has 6 divisors (see below), whose sum is σ = 3736499298. Its totient is φ = 1067571224.

The previous prime is 2135142419. The next prime is 2135142473. The reversal of 2135142452 is 2542415312.

It can be written as a sum of positive squares in only one way, i.e., 1995051556 + 140090896 = 44666^2 + 11836^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266892803 + ... + 266892810.

It is an arithmetic number, because the mean of its divisors is an integer number (622749883).

Almost surely, 2^2135142452 is an apocalyptic number.

It is an amenable number.

2135142452 is a deficient number, since it is larger than the sum of its proper divisors (1601356846).

2135142452 is a wasteful number, since it uses less digits than its factorization.

2135142452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533785617 (or 533785615 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 2135142452 is about 46207.6016689895. The cubic root of 2135142452 is about 1287.6829693402.

Adding to 2135142452 its reverse (2542415312), we get a palindrome (4677557764).

The spelling of 2135142452 in words is "two billion, one hundred thirty-five million, one hundred forty-two thousand, four hundred fifty-two".