4925731121 has 2 divisors, whose sum is σ = 4925731122. Its totient is φ = 4925731120.

The previous prime is 4925731099. The next prime is 4925731123. The reversal of 4925731121 is 1211375294.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4246346896 + 679384225 = 65164^2 + 26065^2 .

It is a cyclic number.

It is not a de Polignac number, because 4925731121 - 2²² = 4921536817 is a prime.

Together with 4925731123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4925731123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2462865560 + 2462865561.

It is an arithmetic number, because the mean of its divisors is an integer number (2462865561).

Almost surely, 2^4925731121 is an apocalyptic number.

It is an amenable number.

4925731121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4925731121 is an equidigital number, since it uses as much as digits as its factorization.

4925731121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 35.

The square root of 4925731121 is about 70183.5530662277. The cubic root of 4925731121 is about 1701.4671441788.

The spelling of 4925731121 in words is "four billion, nine hundred twenty-five million, seven hundred thirty-one thousand, one hundred twenty-one".