1150541521 has 4 divisors (see below), whose sum is σ = 1218220452. Its totient is φ = 1082862592.

The previous prime is 1150541519. The next prime is 1150541527. The reversal of 1150541521 is 1251450511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 569490496 + 581051025 = 23864^2 + 24105^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150541521 - 2¹ = 1150541519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1150541527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33839440 + ... + 33839473.

It is an arithmetic number, because the mean of its divisors is an integer number (304555113).

Almost surely, 2^1150541521 is an apocalyptic number.

It is an amenable number.

1150541521 is a deficient number, since it is larger than the sum of its proper divisors (67678931).

1150541521 is an equidigital number, since it uses as much as digits as its factorization.

1150541521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67678930.

The product of its (nonzero) digits is 1000, while the sum is 25.

The square root of 1150541521 is about 33919.6332674750. The cubic root of 1150541521 is about 1047.8539754516.

The spelling of 1150541521 in words is "one billion, one hundred fifty million, five hundred forty-one thousand, five hundred twenty-one".