6121353457 has 2 divisors, whose sum is σ = 6121353458. Its totient is φ = 6121353456.

The previous prime is 6121353439. The next prime is 6121353479. The reversal of 6121353457 is 7543531216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5773568256 + 347785201 = 75984^2 + 18649^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6121353457 is a prime.

It is not a weakly prime, because it can be changed into another prime (6121353257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3060676728 + 3060676729.

It is an arithmetic number, because the mean of its divisors is an integer number (3060676729).

Almost surely, 2^6121353457 is an apocalyptic number.

It is an amenable number.

6121353457 is a deficient number, since it is larger than the sum of its proper divisors (1).

6121353457 is an equidigital number, since it uses as much as digits as its factorization.

6121353457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 37.

The square root of 6121353457 is about 78239.0788353237. The cubic root of 6121353457 is about 1829.2896859068.

The spelling of 6121353457 in words is "six billion, one hundred twenty-one million, three hundred fifty-three thousand, four hundred fifty-seven".