2151404012 has 6 divisors (see below), whose sum is σ = 3764957028. Its totient is φ = 1075702004.

The previous prime is 2151404011. The next prime is 2151404033. The reversal of 2151404012 is 2104041512.

It is a happy number.

It is a super-2 number, since 2×2151404012² = 9257078445699392288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2151404011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 268925498 + ... + 268925505.

It is an arithmetic number, because the mean of its divisors is an integer number (627492838).

Almost surely, 2^2151404012 is an apocalyptic number.

It is an amenable number.

2151404012 is a deficient number, since it is larger than the sum of its proper divisors (1613553016).

2151404012 is a wasteful number, since it uses less digits than its factorization.

2151404012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537851007 (or 537851005 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2151404012 is about 46383.2298573525. The cubic root of 2151404012 is about 1290.9437662342.

Adding to 2151404012 its reverse (2104041512), we get a palindrome (4255445524).

The spelling of 2151404012 in words is "two billion, one hundred fifty-one million, four hundred four thousand, twelve".