1151530 has 8 divisors (see below), whose sum is σ = 2072772. Its totient is φ = 460608.

The previous prime is 1151519. The next prime is 1151537. The reversal of 1151530 is 351511.

It can be written as a sum of positive squares in 2 ways, for example, as 1147041 + 4489 = 1071^2 + 67^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1151537) 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, 57567 + ... + 57586.

2^1151530 is an apocalyptic number.

1151530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1151530 is a deficient number, since it is larger than the sum of its proper divisors (921242).

1151530 is a wasteful number, since it uses less digits than its factorization.

1151530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115160.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 1151530 is about 1073.0936585406. The cubic root of 1151530 is about 104.8153974813.

It can be divided in two parts, 1151 and 530, that added together give a square (1681 = 41²).

The spelling of 1151530 in words is "one million, one hundred fifty-one thousand, five hundred thirty".