7138245 has 16 divisors (see below), whose sum is σ = 11551680. Its totient is φ = 3763584.

The previous prime is 7138237. The next prime is 7138273. The reversal of 7138245 is 5428317.

It is not a de Polignac number, because 7138245 - 2³ = 7138237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1339 + ... + 4008.

It is an arithmetic number, because the mean of its divisors is an integer number (721980).

Almost surely, 2^7138245 is an apocalyptic number.

It is an amenable number.

7138245 is a deficient number, since it is larger than the sum of its proper divisors (4413435).

7138245 is a wasteful number, since it uses less digits than its factorization.

7138245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5444.

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

The square root of 7138245 is about 2671.7494268737. The cubic root of 7138245 is about 192.5442187731.

The spelling of 7138245 in words is "seven million, one hundred thirty-eight thousand, two hundred forty-five".