1153155001 has 4 divisors (see below), whose sum is σ = 1153472292. Its totient is φ = 1152837712.

The previous prime is 1153154953. The next prime is 1153155007. The reversal of 1153155001 is 1005513511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1005513511 = 2437 ⋅412603.

It can be written as a sum of positive squares in 2 ways, for example, as 1027266601 + 125888400 = 32051^2 + 11220^2 .

It is a cyclic number.

It is not a de Polignac number, because 1153155001 - 2¹⁵ = 1153122233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153155007) 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, 153130 + ... + 160483.

It is an arithmetic number, because the mean of its divisors is an integer number (288368073).

Almost surely, 2^1153155001 is an apocalyptic number.

It is an amenable number.

1153155001 is a deficient number, since it is larger than the sum of its proper divisors (317291).

1153155001 is an equidigital number, since it uses as much as digits as its factorization.

1153155001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317290.

The product of its (nonzero) digits is 375, while the sum is 22.

The square root of 1153155001 is about 33958.1360059706. The cubic root of 1153155001 is about 1048.6467831326.

Adding to 1153155001 its reverse (1005513511), we get a palindrome (2158668512).

The spelling of 1153155001 in words is "one billion, one hundred fifty-three million, one hundred fifty-five thousand, one".