1421541451 has 8 divisors (see below), whose sum is σ = 1554868800. Its totient is φ = 1288896840.

The previous prime is 1421541439. The next prime is 1421541467. The reversal of 1421541451 is 1541451241.

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

It is not a de Polignac number, because 1421541451 - 2²⁵ = 1387987019 is a prime.

It is a super-2 number, since 2×1421541451² = 4041560193822370802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421541551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166321 + ... + 174658.

It is an arithmetic number, because the mean of its divisors is an integer number (194358600).

Almost surely, 2^1421541451 is an apocalyptic number.

1421541451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1421541451 is a deficient number, since it is larger than the sum of its proper divisors (133327349).

1421541451 is a wasteful number, since it uses less digits than its factorization.

1421541451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341369.

The product of its digits is 3200, while the sum is 28.

The square root of 1421541451 is about 37703.3347464120. The cubic root of 1421541451 is about 1124.3974257174.

Adding to 1421541451 its reverse (1541451241), we get a palindrome (2962992692).

The spelling of 1421541451 in words is "one billion, four hundred twenty-one million, five hundred forty-one thousand, four hundred fifty-one".