7445213 has 4 divisors (see below), whose sum is σ = 7476348. Its totient is φ = 7414080.

The previous prime is 7445203. The next prime is 7445219. The reversal of 7445213 is 3125447.

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 4251844 + 3193369 = 2062^2 + 1787^2 .

It is a cyclic number.

It is not a de Polignac number, because 7445213 - 2¹⁶ = 7379677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7445219) 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, 15206 + ... + 15687.

It is an arithmetic number, because the mean of its divisors is an integer number (1869087).

Almost surely, 2^7445213 is an apocalyptic number.

It is an amenable number.

7445213 is a deficient number, since it is larger than the sum of its proper divisors (31135).

7445213 is a wasteful number, since it uses less digits than its factorization.

7445213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31134.

The product of its digits is 3360, while the sum is 26.

The square root of 7445213 is about 2728.5917613304. The cubic root of 7445213 is about 195.2655859546.

The spelling of 7445213 in words is "seven million, four hundred forty-five thousand, two hundred thirteen".