7521373 has 2 divisors, whose sum is σ = 7521374. Its totient is φ = 7521372.

The previous prime is 7521347. The next prime is 7521383. The reversal of 7521373 is 3731257.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7518564 + 2809 = 2742^2 + 53^2 .

It is an emirp because it is prime and its reverse (3731257) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7521373 - 2⁵ = 7521341 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7521343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3760686 + 3760687.

It is an arithmetic number, because the mean of its divisors is an integer number (3760687).

Almost surely, 2^7521373 is an apocalyptic number.

It is an amenable number.

7521373 is a deficient number, since it is larger than the sum of its proper divisors (1).

7521373 is an equidigital number, since it uses as much as digits as its factorization.

7521373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4410, while the sum is 28.

The square root of 7521373 is about 2742.5121695263. The cubic root of 7521373 is about 195.9291445257.

The spelling of 7521373 in words is "seven million, five hundred twenty-one thousand, three hundred seventy-three".