1453405421 has 8 divisors (see below), whose sum is σ = 1565932704. Its totient is φ = 1340982000.

The previous prime is 1453405403. The next prime is 1453405439. The reversal of 1453405421 is 1245043541.

It is an interprime number because it is at equal distance from previous prime (1453405403) and next prime (1453405439).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1453405421 - 2¹⁸ = 1453143277 is a prime.

It is a super-2 number, since 2×1453405421² = 4224774635584374482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1453405321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4430 + ... + 54096.

It is an arithmetic number, because the mean of its divisors is an integer number (195741588).

Almost surely, 2^1453405421 is an apocalyptic number.

It is an amenable number.

1453405421 is a deficient number, since it is larger than the sum of its proper divisors (112527283).

1453405421 is a wasteful number, since it uses less digits than its factorization.

1453405421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51931.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1453405421 is about 38123.5546742431. The cubic root of 1453405421 is about 1132.7365790207.

Adding to 1453405421 its reverse (1245043541), we get a palindrome (2698448962).

The spelling of 1453405421 in words is "one billion, four hundred fifty-three million, four hundred five thousand, four hundred twenty-one".