7245138 has 16 divisors (see below), whose sum is σ = 15120576. Its totient is φ = 2310000.

The previous prime is 7245127. The next prime is 7245143. The reversal of 7245138 is 8315427.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26113 + ... + 26388.

It is an arithmetic number, because the mean of its divisors is an integer number (945036).

Almost surely, 2^7245138 is an apocalyptic number.

7245138 is an abundant number, since it is smaller than the sum of its proper divisors (7875438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7245138 is a wasteful number, since it uses less digits than its factorization.

7245138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52529.

The product of its digits is 6720, while the sum is 30.

The square root of 7245138 is about 2691.6794014147. The cubic root of 7245138 is about 193.5005575236.

The spelling of 7245138 in words is "seven million, two hundred forty-five thousand, one hundred thirty-eight".