2151162452 has 6 divisors (see below), whose sum is σ = 3764534298. Its totient is φ = 1075581224.

The previous prime is 2151162443. The next prime is 2151162491. The reversal of 2151162452 is 2542611512.

It can be written as a sum of positive squares in only one way, i.e., 1943399056 + 207763396 = 44084^2 + 14414^2 .

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, 268895303 + ... + 268895310.

It is an arithmetic number, because the mean of its divisors is an integer number (627422383).

Almost surely, 2^2151162452 is an apocalyptic number.

It is an amenable number.

2151162452 is a deficient number, since it is larger than the sum of its proper divisors (1613371846).

2151162452 is a wasteful number, since it uses less digits than its factorization.

2151162452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537790617 (or 537790615 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 2151162452 is about 46380.6258258769. The cubic root of 2151162452 is about 1290.8954486322.

Adding to 2151162452 its reverse (2542611512), we get a palindrome (4693773964).

The spelling of 2151162452 in words is "two billion, one hundred fifty-one million, one hundred sixty-two thousand, four hundred fifty-two".