7652730121 has 4 divisors (see below), whose sum is σ = 7677180052. Its totient is φ = 7628280192.

The previous prime is 7652730109. The next prime is 7652730133. The reversal of 7652730121 is 1210372567.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1210372567 = 6067 ⋅199501.

It is an interprime number because it is at equal distance from previous prime (7652730109) and next prime (7652730133).

It can be written as a sum of positive squares in 2 ways, for example, as 163558521 + 7489171600 = 12789^2 + 86540^2 .

It is a cyclic number.

It is not a de Polignac number, because 7652730121 - 2¹³ = 7652721929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7652730181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12224496 + ... + 12225121.

It is an arithmetic number, because the mean of its divisors is an integer number (1919295013).

Almost surely, 2^7652730121 is an apocalyptic number.

It is an amenable number.

7652730121 is a deficient number, since it is larger than the sum of its proper divisors (24449931).

7652730121 is a wasteful number, since it uses less digits than its factorization.

7652730121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24449930.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 7652730121 is about 87479.8840934303. The cubic root of 7652730121 is about 1970.6317059057.

The spelling of 7652730121 in words is "seven billion, six hundred fifty-two million, seven hundred thirty thousand, one hundred twenty-one".