7121552 has 10 divisors (see below), whose sum is σ = 13798038. Its totient is φ = 3560768.

The previous prime is 7121539. The next prime is 7121573. The reversal of 7121552 is 2551217.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6948496 + 173056 = 2636^2 + 416^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222533 + ... + 222564.

Almost surely, 2^7121552 is an apocalyptic number.

It is an amenable number.

7121552 is a deficient number, since it is larger than the sum of its proper divisors (6676486).

7121552 is a wasteful number, since it uses less digits than its factorization.

7121552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445105 (or 445099 counting only the distinct ones).

The product of its digits is 700, while the sum is 23.

The square root of 7121552 is about 2668.6236152744. The cubic root of 7121552 is about 192.3940114808.

Adding to 7121552 its reverse (2551217), we get a palindrome (9672769).

The spelling of 7121552 in words is "seven million, one hundred twenty-one thousand, five hundred fifty-two".