1241620005 has 16 divisors (see below), whose sum is σ = 1996012224. Its totient is φ = 659057280.

The previous prime is 1241620001. The next prime is 1241620019. The reversal of 1241620005 is 5000261421.

It is not a de Polignac number, because 1241620005 - 2² = 1241620001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241620001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192984 + ... + 199313.

It is an arithmetic number, because the mean of its divisors is an integer number (124750764).

Almost surely, 2^1241620005 is an apocalyptic number.

1241620005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1241620005 is a deficient number, since it is larger than the sum of its proper divisors (754392219).

1241620005 is a wasteful number, since it uses less digits than its factorization.

1241620005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392516.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1241620005 is about 35236.6287405592. The cubic root of 1241620005 is about 1074.8047253019.

Adding to 1241620005 its reverse (5000261421), we get a palindrome (6241881426).

The spelling of 1241620005 in words is "one billion, two hundred forty-one million, six hundred twenty thousand, five".