7122154433 has 4 divisors (see below), whose sum is σ = 7125079380. Its totient is φ = 7119229488.

The previous prime is 7122154409. The next prime is 7122154451. The reversal of 7122154433 is 3344512217.

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 5564115649 + 1558038784 = 74593^2 + 39472^2 .

It is a cyclic number.

It is not a de Polignac number, because 7122154433 - 2²⁰ = 7121105857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7122154433.

It is not an unprimeable number, because it can be changed into a prime (7122154933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1458818 + ... + 1463691.

It is an arithmetic number, because the mean of its divisors is an integer number (1781269845).

Almost surely, 2^7122154433 is an apocalyptic number.

It is an amenable number.

7122154433 is a deficient number, since it is larger than the sum of its proper divisors (2924947).

7122154433 is a wasteful number, since it uses less digits than its factorization.

7122154433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924946.

The product of its digits is 20160, while the sum is 32.

The square root of 7122154433 is about 84392.8577131975. The cubic root of 7122154433 is about 1923.9943638600.

The spelling of 7122154433 in words is "seven billion, one hundred twenty-two million, one hundred fifty-four thousand, four hundred thirty-three".