1421483901 has 4 divisors (see below), whose sum is σ = 1895311872. Its totient is φ = 947655932.

The previous prime is 1421483891. The next prime is 1421483911. The reversal of 1421483901 is 1093841241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1093841241 = 3 ⋅364613747.

It is an interprime number because it is at equal distance from previous prime (1421483891) and next prime (1421483911).

It is a cyclic number.

It is not a de Polignac number, because 1421483901 - 2⁷ = 1421483773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421483911) 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 3 ways as a sum of consecutive naturals, for example, 236913981 + ... + 236913986.

It is an arithmetic number, because the mean of its divisors is an integer number (473827968).

Almost surely, 2^1421483901 is an apocalyptic number.

It is an amenable number.

1421483901 is a deficient number, since it is larger than the sum of its proper divisors (473827971).

1421483901 is an equidigital number, since it uses as much as digits as its factorization.

1421483901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473827970.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1421483901 is about 37702.5715435963. The cubic root of 1421483901 is about 1124.3822520608.

The spelling of 1421483901 in words is "one billion, four hundred twenty-one million, four hundred eighty-three thousand, nine hundred one".