1151555105 has 8 divisors (see below), whose sum is σ = 1382804352. Its totient is φ = 920618608.

The previous prime is 1151555081. The next prime is 1151555147. The reversal of 1151555105 is 5015551511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1151555105 - 2¹⁰ = 1151554081 is a prime.

It is a super-2 number, since 2×1151555105² = 2652158319703122050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70007 + ... + 84876.

It is an arithmetic number, because the mean of its divisors is an integer number (172850544).

Almost surely, 2^1151555105 is an apocalyptic number.

It is an amenable number.

1151555105 is a deficient number, since it is larger than the sum of its proper divisors (231249247).

1151555105 is a wasteful number, since it uses less digits than its factorization.

1151555105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156375.

The product of its (nonzero) digits is 3125, while the sum is 29.

The square root of 1151555105 is about 33934.5709417402. The cubic root of 1151555105 is about 1048.1615918422.

The spelling of 1151555105 in words is "one billion, one hundred fifty-one million, five hundred fifty-five thousand, one hundred five".