1153342157 has 4 divisors (see below), whose sum is σ = 1258191456. Its totient is φ = 1048492860.

The previous prime is 1153342147. The next prime is 1153342159. The reversal of 1153342157 is 7512433511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7512433511 = 11 ⋅682948501.

It is a cyclic number.

It is not a de Polignac number, because 1153342157 - 2⁸ = 1153341901 is a prime.

It is a super-2 number, since 2×1153342157² = 2660396262226825298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153342159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52424633 + ... + 52424654.

It is an arithmetic number, because the mean of its divisors is an integer number (314547864).

Almost surely, 2^1153342157 is an apocalyptic number.

It is an amenable number.

1153342157 is a deficient number, since it is larger than the sum of its proper divisors (104849299).

1153342157 is a wasteful number, since it uses less digits than its factorization.

1153342157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104849298.

The product of its digits is 12600, while the sum is 32.

The square root of 1153342157 is about 33960.8915813469. The cubic root of 1153342157 is about 1048.7035115344.

Adding to 1153342157 its reverse (7512433511), we get a palindrome (8665775668).

The spelling of 1153342157 in words is "one billion, one hundred fifty-three million, three hundred forty-two thousand, one hundred fifty-seven".