7120045 has 8 divisors (see below), whose sum is σ = 8596224. Its totient is φ = 5661264.

The previous prime is 7120039. The next prime is 7120063. The reversal of 7120045 is 5400217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7120045 - 2³ = 7120037 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 3429 + ... + 5098.

It is an arithmetic number, because the mean of its divisors is an integer number (1074528).

Almost surely, 2^7120045 is an apocalyptic number.

It is an amenable number.

7120045 is a deficient number, since it is larger than the sum of its proper divisors (1476179).

7120045 is a wasteful number, since it uses less digits than its factorization.

7120045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8699.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 7120045 is about 2668.3412450434. The cubic root of 7120045 is about 192.3804396157.

The spelling of 7120045 in words is "seven million, one hundred twenty thousand, forty-five".