1154020105 has 16 divisors (see below), whose sum is σ = 1633711104. Its totient is φ = 765800640.

The previous prime is 1154020099. The next prime is 1154020139. The reversal of 1154020105 is 5010204511.

It is not a de Polignac number, because 1154020105 - 2³ = 1154020097 is a prime.

It is a super-2 number, since 2×1154020105² = 2663524805488422050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 530722 + ... + 532891.

It is an arithmetic number, because the mean of its divisors is an integer number (102106944).

Almost surely, 2^1154020105 is an apocalyptic number.

It is an amenable number.

1154020105 is a deficient number, since it is larger than the sum of its proper divisors (479690999).

1154020105 is a wasteful number, since it uses less digits than its factorization.

1154020105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063656.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1154020105 is about 33970.8714194970. The cubic root of 1154020105 is about 1048.9089513467.

Adding to 1154020105 its reverse (5010204511), we get a palindrome (6164224616).

The spelling of 1154020105 in words is "one billion, one hundred fifty-four million, twenty thousand, one hundred five".