1454542421 has 2 divisors, whose sum is σ = 1454542422. Its totient is φ = 1454542420.

The previous prime is 1454542373. The next prime is 1454542429. The reversal of 1454542421 is 1242454541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1454278225 + 264196 = 38135^2 + 514^2 .

It is a cyclic number.

It is not a de Polignac number, because 1454542421 - 2²² = 1450348117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1454542429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727271210 + 727271211.

It is an arithmetic number, because the mean of its divisors is an integer number (727271211).

Almost surely, 2^1454542421 is an apocalyptic number.

It is an amenable number.

1454542421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1454542421 is an equidigital number, since it uses as much as digits as its factorization.

1454542421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25600, while the sum is 32.

The square root of 1454542421 is about 38138.4637996865. The cubic root of 1454542421 is about 1133.0318822147.

Adding to 1454542421 its reverse (1242454541), we get a palindrome (2696996962).

The spelling of 1454542421 in words is "one billion, four hundred fifty-four million, five hundred forty-two thousand, four hundred twenty-one".