2151096469 has 4 divisors (see below), whose sum is σ = 2151311596. Its totient is φ = 2150881344.

The previous prime is 2151096427. The next prime is 2151096473. The reversal of 2151096469 is 9646901512.

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 568250244 + 1582846225 = 23838^2 + 39785^2 .

It is a cyclic number.

It is not a de Polignac number, because 2151096469 - 2³¹ = 3612821 is a prime.

It is a super-2 number, since 2×2151096469² = 9254432037888535922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151096769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91794 + ... + 112819.

It is an arithmetic number, because the mean of its divisors is an integer number (537827899).

Almost surely, 2^2151096469 is an apocalyptic number.

It is an amenable number.

2151096469 is a deficient number, since it is larger than the sum of its proper divisors (215127).

2151096469 is a wasteful number, since it uses less digits than its factorization.

2151096469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215126.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 2151096469 is about 46379.9144997056. The cubic root of 2151096469 is about 1290.8822498731.

The spelling of 2151096469 in words is "two billion, one hundred fifty-one million, ninety-six thousand, four hundred sixty-nine".