2151161463 has 32 divisors (see below), whose sum is σ = 3220031232. Its totient is φ = 1265932800.

The previous prime is 2151161461. The next prime is 2151161477. The reversal of 2151161463 is 3641611512.

It is a happy number.

It is not a de Polignac number, because 2151161463 - 2¹ = 2151161461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2151161463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151161461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 722568 + ... + 725538.

It is an arithmetic number, because the mean of its divisors is an integer number (100625976).

Almost surely, 2^2151161463 is an apocalyptic number.

2151161463 is a deficient number, since it is larger than the sum of its proper divisors (1068869769).

2151161463 is a wasteful number, since it uses less digits than its factorization.

2151161463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3615.

The product of its digits is 4320, while the sum is 30.

The square root of 2151161463 is about 46380.6151640963. The cubic root of 2151161463 is about 1290.8952508019.

Adding to 2151161463 its reverse (3641611512), we get a palindrome (5792772975).

The spelling of 2151161463 in words is "two billion, one hundred fifty-one million, one hundred sixty-one thousand, four hundred sixty-three".