1471211421 has 4 divisors (see below), whose sum is σ = 1961615232. Its totient is φ = 980807612.

The previous prime is 1471211411. The next prime is 1471211429. The reversal of 1471211421 is 1241121741.

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: 1241121741 = 3 ⋅413707247.

It is a cyclic number.

It is not a de Polignac number, because 1471211421 - 2⁷ = 1471211293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1471211391 and 1471211400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1471211429) 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, 245201901 + ... + 245201906.

It is an arithmetic number, because the mean of its divisors is an integer number (490403808).

Almost surely, 2^1471211421 is an apocalyptic number.

It is an amenable number.

1471211421 is a deficient number, since it is larger than the sum of its proper divisors (490403811).

1471211421 is an equidigital number, since it uses as much as digits as its factorization.

1471211421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490403810.

The product of its digits is 448, while the sum is 24.

The square root of 1471211421 is about 38356.3739292441. The cubic root of 1471211421 is about 1137.3436203492.

The spelling of 1471211421 in words is "one billion, four hundred seventy-one million, two hundred eleven thousand, four hundred twenty-one".