1153512403 has 2 divisors, whose sum is σ = 1153512404. Its totient is φ = 1153512402.

The previous prime is 1153512397. The next prime is 1153512413. The reversal of 1153512403 is 3042153511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1153512403 is a prime.

It is not a weakly prime, because it can be changed into another prime (1153512413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576756201 + 576756202.

It is an arithmetic number, because the mean of its divisors is an integer number (576756202).

Almost surely, 2^1153512403 is an apocalyptic number.

1153512403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153512403 is an equidigital number, since it uses as much as digits as its factorization.

1153512403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1153512403 is about 33963.3979896005. The cubic root of 1153512403 is about 1048.7551090570.

Adding to 1153512403 its reverse (3042153511), we get a palindrome (4195665914).

The spelling of 1153512403 in words is "one billion, one hundred fifty-three million, five hundred twelve thousand, four hundred three".