1201642522 has 16 divisors (see below), whose sum is σ = 1861558272. Its totient is φ = 581142960.

The previous prime is 1201642493. The next prime is 1201642537. The reversal of 1201642522 is 2252461021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162988 + ... + 170200.

It is an arithmetic number, because the mean of its divisors is an integer number (116347392).

Almost surely, 2^1201642522 is an apocalyptic number.

1201642522 is a deficient number, since it is larger than the sum of its proper divisors (659915750).

1201642522 is a wasteful number, since it uses less digits than its factorization.

1201642522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9933.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1201642522 is about 34664.7158072874. The cubic root of 1201642522 is about 1063.1431926036.

The spelling of 1201642522 in words is "one billion, two hundred one million, six hundred forty-two thousand, five hundred twenty-two".