1621414103 has 2 divisors, whose sum is σ = 1621414104. Its totient is φ = 1621414102.

The previous prime is 1621414087. The next prime is 1621414127. The reversal of 1621414103 is 3014141261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1621414103 - 2⁴ = 1621414087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1621414133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 810707051 + 810707052.

It is an arithmetic number, because the mean of its divisors is an integer number (810707052).

Almost surely, 2^1621414103 is an apocalyptic number.

1621414103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1621414103 is an equidigital number, since it uses as much as digits as its factorization.

1621414103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1621414103 is about 40266.7865988832. The cubic root of 1621414103 is about 1174.8019229711.

Adding to 1621414103 its reverse (3014141261), we get a palindrome (4635555364).

The spelling of 1621414103 in words is "one billion, six hundred twenty-one million, four hundred fourteen thousand, one hundred three".