1153642031 has 2 divisors, whose sum is σ = 1153642032. Its totient is φ = 1153642030.

The previous prime is 1153642001. The next prime is 1153642079. The reversal of 1153642031 is 1302463511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1153642031 - 2¹⁰ = 1153641007 is a prime.

It is a super-2 number, since 2×1153642031² = 2661779871379609922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1153642001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576821015 + 576821016.

It is an arithmetic number, because the mean of its divisors is an integer number (576821016).

Almost surely, 2^1153642031 is an apocalyptic number.

1153642031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153642031 is an equidigital number, since it uses as much as digits as its factorization.

1153642031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1153642031 is about 33965.3062845015. The cubic root of 1153642031 is about 1048.7943928233.

The spelling of 1153642031 in words is "one billion, one hundred fifty-three million, six hundred forty-two thousand, thirty-one".