7121473 has 2 divisors, whose sum is σ = 7121474. Its totient is φ = 7121472.

The previous prime is 7121441. The next prime is 7121489. The reversal of 7121473 is 3741217.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7118224 + 3249 = 2668^2 + 57^2 .

It is a cyclic number.

It is not a de Polignac number, because 7121473 - 2⁵ = 7121441 is a prime.

7121473 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (7121173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3560736 + 3560737.

It is an arithmetic number, because the mean of its divisors is an integer number (3560737).

Almost surely, 2^7121473 is an apocalyptic number.

It is an amenable number.

7121473 is a deficient number, since it is larger than the sum of its proper divisors (1).

7121473 is an equidigital number, since it uses as much as digits as its factorization.

7121473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1176, while the sum is 25.

The square root of 7121473 is about 2668.6088135956. The cubic root of 7121473 is about 192.3933000636.

The spelling of 7121473 in words is "seven million, one hundred twenty-one thousand, four hundred seventy-three".