1151535541 has 8 divisors (see below), whose sum is σ = 1245059424. Its totient is φ = 1058718000.

The previous prime is 1151535493. The next prime is 1151535547. The reversal of 1151535541 is 1455351511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1151535541 - 2²⁷ = 1017317813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151535547) 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 7 ways as a sum of consecutive naturals, for example, 173191 + ... + 179716.

It is an arithmetic number, because the mean of its divisors is an integer number (155632428).

Almost surely, 2^1151535541 is an apocalyptic number.

It is an amenable number.

1151535541 is a deficient number, since it is larger than the sum of its proper divisors (93523883).

1151535541 is a wasteful number, since it uses less digits than its factorization.

1151535541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353171.

The product of its digits is 7500, while the sum is 31.

The square root of 1151535541 is about 33934.2826799094. The cubic root of 1151535541 is about 1048.1556559996.

The spelling of 1151535541 in words is "one billion, one hundred fifty-one million, five hundred thirty-five thousand, five hundred forty-one".