1153172107 has 4 divisors (see below), whose sum is σ = 1157659416. Its totient is φ = 1148684800.

The previous prime is 1153172089. The next prime is 1153172123. The reversal of 1153172107 is 7012713511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7012713511 = 257 ⋅27286823.

It is a cyclic number.

It is not a de Polignac number, because 1153172107 - 2¹⁹ = 1152647819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1153172147) 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, 2243269 + ... + 2243782.

It is an arithmetic number, because the mean of its divisors is an integer number (289414854).

Almost surely, 2^1153172107 is an apocalyptic number.

1153172107 is a deficient number, since it is larger than the sum of its proper divisors (4487309).

1153172107 is an equidigital number, since it uses as much as digits as its factorization.

1153172107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4487308.

The product of its (nonzero) digits is 1470, while the sum is 28.

The square root of 1153172107 is about 33958.3878739848. The cubic root of 1153172107 is about 1048.6519683456.

Adding to 1153172107 its reverse (7012713511), we get a palindrome (8165885618).

It can be divided in two parts, 11531 and 72107, that added together give a palindrome (83638).

The spelling of 1153172107 in words is "one billion, one hundred fifty-three million, one hundred seventy-two thousand, one hundred seven".