7031145 has 32 divisors (see below), whose sum is σ = 12570624. Its totient is φ = 3326400.

The previous prime is 7031113. The next prime is 7031173. The reversal of 7031145 is 5411307.

7031145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7031145 - 2⁵ = 7031113 is a prime.

It is a super-2 number, since 2×7031145² = 98874000022050, which contains 22 as substring.

It is an Ulam number.

7031145 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6600 + ... + 7590.

It is an arithmetic number, because the mean of its divisors is an integer number (392832).

Almost surely, 2^7031145 is an apocalyptic number.

It is an amenable number.

7031145 is a deficient number, since it is larger than the sum of its proper divisors (5539479).

7031145 is a wasteful number, since it uses less digits than its factorization.

7031145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 7031145 is about 2651.6306303858. The cubic root of 7031145 is about 191.5764044641.

The spelling of 7031145 in words is "seven million, thirty-one thousand, one hundred forty-five".