1051005105 has 32 divisors (see below), whose sum is σ = 1903720320. Its totient is φ = 549956160.

The previous prime is 1051005103. The next prime is 1051005113. The reversal of 1051005105 is 5015001501.

It is not a de Polignac number, because 1051005105 - 2¹ = 1051005103 is a prime.

It is a super-2 number, since 2×1051005105² = 2209223461472122050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051005101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66291 + ... + 80600.

It is an arithmetic number, because the mean of its divisors is an integer number (59491260).

Almost surely, 2^1051005105 is an apocalyptic number.

1051005105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1051005105 is a deficient number, since it is larger than the sum of its proper divisors (852715215).

1051005105 is a wasteful number, since it uses less digits than its factorization.

1051005105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146958 (or 146952 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 18.

The square root of 1051005105 is about 32419.2088891756. The cubic root of 1051005105 is about 1016.7205661054.

Adding to 1051005105 its reverse (5015001501), we get a palindrome (6066006606).

The spelling of 1051005105 in words is "one billion, fifty-one million, five thousand, one hundred five".