1453672421 has 2 divisors, whose sum is σ = 1453672422. Its totient is φ = 1453672420.

The previous prime is 1453672403. The next prime is 1453672439. The reversal of 1453672421 is 1242763541.

It is a balanced prime because it is at equal distance from previous prime (1453672403) and next prime (1453672439).

It can be written as a sum of positive squares in only one way, i.e., 881793025 + 571879396 = 29695^2 + 23914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1453672421 - 2¹⁰ = 1453671397 is a prime.

It is a super-2 number, since 2×1453672421² = 4226327015152002482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1453692421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726836210 + 726836211.

It is an arithmetic number, because the mean of its divisors is an integer number (726836211).

Almost surely, 2^1453672421 is an apocalyptic number.

It is an amenable number.

1453672421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1453672421 is an equidigital number, since it uses as much as digits as its factorization.

1453672421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 1453672421 is about 38127.0562855304. The cubic root of 1453672421 is about 1132.8059384585.

The spelling of 1453672421 in words is "one billion, four hundred fifty-three million, six hundred seventy-two thousand, four hundred twenty-one".