291153052 has 6 divisors (see below), whose sum is σ = 509517848. Its totient is φ = 145576524.

The previous prime is 291153041. The next prime is 291153059. The reversal of 291153052 is 250351192.

It is a self number, because there is not a number n which added to its sum of digits gives 291153052.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (291153059) 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 as a sum of consecutive naturals, namely, 36394128 + ... + 36394135.

Almost surely, 2^291153052 is an apocalyptic number.

It is an amenable number.

291153052 is a deficient number, since it is larger than the sum of its proper divisors (218364796).

291153052 is a wasteful number, since it uses less digits than its factorization.

291153052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72788267 (or 72788265 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 291153052 is about 17063.2075530951. The cubic root of 291153052 is about 662.7866959931.

The spelling of 291153052 in words is "two hundred ninety-one million, one hundred fifty-three thousand, fifty-two".