7200520145 has 32 divisors (see below), whose sum is σ = 10655850240. Its totient is φ = 4548591360.

The previous prime is 7200520123. The next prime is 7200520147. The reversal of 7200520145 is 5410250027.

It is not a de Polignac number, because 7200520145 - 2²⁸ = 6932084689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7200520147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 216050 + ... + 247140.

It is an arithmetic number, because the mean of its divisors is an integer number (332995320).

Almost surely, 2^7200520145 is an apocalyptic number.

It is an amenable number.

7200520145 is a deficient number, since it is larger than the sum of its proper divisors (3455330095).

7200520145 is a wasteful number, since it uses less digits than its factorization.

7200520145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31625.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 7200520145 is about 84855.8786708381. The cubic root of 7200520145 is about 1931.0252675801.

The spelling of 7200520145 in words is "seven billion, two hundred million, five hundred twenty thousand, one hundred forty-five".