7532121 has 4 divisors (see below), whose sum is σ = 10042832. Its totient is φ = 5021412.

The previous prime is 7532089. The next prime is 7532131. The reversal of 7532121 is 1212357.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1212357 = 3 ⋅404119.

It is not a de Polignac number, because 7532121 - 2⁵ = 7532089 is a prime.

It is a Duffinian number.

7532121 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7532131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255351 + ... + 1255356.

It is an arithmetic number, because the mean of its divisors is an integer number (2510708).

Almost surely, 2^7532121 is an apocalyptic number.

It is an amenable number.

7532121 is a deficient number, since it is larger than the sum of its proper divisors (2510711).

7532121 is a wasteful number, since it uses less digits than its factorization.

7532121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510710.

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

The square root of 7532121 is about 2744.4709872761. The cubic root of 7532121 is about 196.0224273240.

Adding to 7532121 its reverse (1212357), we get a palindrome (8744478).

The spelling of 7532121 in words is "seven million, five hundred thirty-two thousand, one hundred twenty-one".