1151878503 has 16 divisors (see below), whose sum is σ = 1634450400. Its totient is φ = 719072256.

The previous prime is 1151878489. The next prime is 1151878517. The reversal of 1151878503 is 3058781511.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1151878489) and next prime (1151878517).

It is not a de Polignac number, because 1151878503 - 2⁵ = 1151878471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151878523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47278 + ... + 67371.

It is an arithmetic number, because the mean of its divisors is an integer number (102153150).

Almost surely, 2^1151878503 is an apocalyptic number.

1151878503 is a deficient number, since it is larger than the sum of its proper divisors (482571897).

1151878503 is a wasteful number, since it uses less digits than its factorization.

1151878503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114866.

The product of its (nonzero) digits is 33600, while the sum is 39.

The square root of 1151878503 is about 33939.3356299147. The cubic root of 1151878503 is about 1048.2597031220.

The spelling of 1151878503 in words is "one billion, one hundred fifty-one million, eight hundred seventy-eight thousand, five hundred three".