7122501 has 12 divisors (see below), whose sum is σ = 10328812. Its totient is φ = 4729536.

The previous prime is 7122497. The next prime is 7122509. The reversal of 7122501 is 1052217.

It can be written as a sum of positive squares in 2 ways, for example, as 2924100 + 4198401 = 1710^2 + 2049^2 .

It is not a de Polignac number, because 7122501 - 2² = 7122497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7122509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1065 + ... + 3921.

Almost surely, 2^7122501 is an apocalyptic number.

It is an amenable number.

7122501 is a deficient number, since it is larger than the sum of its proper divisors (3206311).

7122501 is a wasteful number, since it uses less digits than its factorization.

7122501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140 (or 3137 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 7122501 is about 2668.8014163665. The cubic root of 7122501 is about 192.4025570809.

Adding to 7122501 its reverse (1052217), we get a palindrome (8174718).

The spelling of 7122501 in words is "seven million, one hundred twenty-two thousand, five hundred one".