1197238153 has 4 divisors (see below), whose sum is σ = 1197432388. Its totient is φ = 1197043920.

The previous prime is 1197238069. The next prime is 1197238157. The reversal of 1197238153 is 3518327911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 439447369 + 757790784 = 20963^2 + 27528^2 .

It is a cyclic number.

It is not a de Polignac number, because 1197238153 - 2⁹ = 1197237641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1197238157) 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, 87558 + ... + 100303.

It is an arithmetic number, because the mean of its divisors is an integer number (299358097).

Almost surely, 2^1197238153 is an apocalyptic number.

It is an amenable number.

1197238153 is a deficient number, since it is larger than the sum of its proper divisors (194235).

1197238153 is an equidigital number, since it uses as much as digits as its factorization.

1197238153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194234.

The product of its digits is 45360, while the sum is 40.

The square root of 1197238153 is about 34601.1293601813. The cubic root of 1197238153 is about 1061.8426928324.

The spelling of 1197238153 in words is "one billion, one hundred ninety-seven million, two hundred thirty-eight thousand, one hundred fifty-three".