1165642522 has 8 divisors (see below), whose sum is σ = 1907415072. Its totient is φ = 529837500.

The previous prime is 1165642469. The next prime is 1165642529. The reversal of 1165642522 is 2252465611.

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 (1165642529) 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, 26491854 + ... + 26491897.

It is an arithmetic number, because the mean of its divisors is an integer number (238426884).

Almost surely, 2^1165642522 is an apocalyptic number.

1165642522 is a deficient number, since it is larger than the sum of its proper divisors (741772550).

1165642522 is a wasteful number, since it uses less digits than its factorization.

1165642522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52983764.

The product of its digits is 28800, while the sum is 34.

The square root of 1165642522 is about 34141.5073188048. The cubic root of 1165642522 is about 1052.4184681908.

Subtracting 1165642522 from its reverse (2252465611), we obtain a square (1086823089 = 32967²).

The spelling of 1165642522 in words is "one billion, one hundred sixty-five million, six hundred forty-two thousand, five hundred twenty-two".