1421453231 has 8 divisors (see below), whose sum is σ = 1588498128. Its totient is φ = 1260712000.

The previous prime is 1421453207. The next prime is 1421453233. The reversal of 1421453231 is 1323541241.

It is a happy number.

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 1421453231 - 2²⁶ = 1354344367 is a prime.

It is a super-2 number, since 2×1421453231² = 4041058575840678722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421453231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421453233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1575440 + ... + 1576341.

It is an arithmetic number, because the mean of its divisors is an integer number (198562266).

Almost surely, 2^1421453231 is an apocalyptic number.

1421453231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1421453231 is a deficient number, since it is larger than the sum of its proper divisors (167044897).

1421453231 is a wasteful number, since it uses less digits than its factorization.

1421453231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151833.

The product of its digits is 2880, while the sum is 26.

The square root of 1421453231 is about 37702.1648052204. The cubic root of 1421453231 is about 1124.3741654288.

Adding to 1421453231 its reverse (1323541241), we get a palindrome (2744994472).

The spelling of 1421453231 in words is "one billion, four hundred twenty-one million, four hundred fifty-three thousand, two hundred thirty-one".