1155606371 has 4 divisors (see below), whose sum is σ = 1164041592. Its totient is φ = 1147171152.

The previous prime is 1155606341. The next prime is 1155606373. The reversal of 1155606371 is 1736065511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1736065511 = 19 ⋅91371869.

It is a cyclic number.

It is not a de Polignac number, because 1155606371 - 2²⁶ = 1088497507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155606373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4217405 + ... + 4217678.

It is an arithmetic number, because the mean of its divisors is an integer number (291010398).

Almost surely, 2^1155606371 is an apocalyptic number.

1155606371 is a deficient number, since it is larger than the sum of its proper divisors (8435221).

1155606371 is an equidigital number, since it uses as much as digits as its factorization.

1155606371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8435220.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 1155606371 is about 33994.2108453778. The cubic root of 1155606371 is about 1049.3893262349.

The spelling of 1155606371 in words is "one billion, one hundred fifty-five million, six hundred six thousand, three hundred seventy-one".