1421004131 has 2 divisors, whose sum is σ = 1421004132. Its totient is φ = 1421004130.

The previous prime is 1421004127. The next prime is 1421004217. The reversal of 1421004131 is 1314001241.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1421004131 - 2² = 1421004127 is a prime.

It is a super-2 number, since 2×1421004131² = 4038505480638130322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1421004631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710502065 + 710502066.

It is an arithmetic number, because the mean of its divisors is an integer number (710502066).

Almost surely, 2^1421004131 is an apocalyptic number.

1421004131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421004131 is an equidigital number, since it uses as much as digits as its factorization.

1421004131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1421004131 is about 37696.2084432904. The cubic root of 1421004131 is about 1124.2557397652.

Adding to 1421004131 its reverse (1314001241), we get a palindrome (2735005372).

The spelling of 1421004131 in words is "one billion, four hundred twenty-one million, four thousand, one hundred thirty-one".