1457225133421 has 2 divisors, whose sum is σ = 1457225133422. Its totient is φ = 1457225133420.

The previous prime is 1457225133319. The next prime is 1457225133487. The reversal of 1457225133421 is 1243315227541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 843688175625 + 613536957796 = 918525^2 + 783286^2 .

It is a cyclic number.

It is not a de Polignac number, because 1457225133421 - 2³⁷ = 1319786179949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1457225137421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728612566710 + 728612566711.

It is an arithmetic number, because the mean of its divisors is an integer number (728612566711).

Almost surely, 2^{1457225133421} is an apocalyptic number.

It is an amenable number.

1457225133421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457225133421 is an equidigital number, since it uses as much as digits as its factorization.

1457225133421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 40.

The spelling of 1457225133421 in words is "one trillion, four hundred fifty-seven billion, two hundred twenty-five million, one hundred thirty-three thousand, four hundred twenty-one".