1151489842 has 4 divisors (see below), whose sum is σ = 1727234766. Its totient is φ = 575744920.

The previous prime is 1151489837. The next prime is 1151489861. The reversal of 1151489842 is 2489841511.

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

It can be written as a sum of positive squares in only one way, i.e., 707081281 + 444408561 = 26591^2 + 21081^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 287872459 + ... + 287872462.

Almost surely, 2^1151489842 is an apocalyptic number.

1151489842 is a deficient number, since it is larger than the sum of its proper divisors (575744924).

1151489842 is an equidigital number, since it uses as much as digits as its factorization.

1151489842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575744923.

The product of its digits is 92160, while the sum is 43.

The square root of 1151489842 is about 33933.6093276268. The cubic root of 1151489842 is about 1048.1417903691.

The spelling of 1151489842 in words is "one billion, one hundred fifty-one million, four hundred eighty-nine thousand, eight hundred forty-two".