1201565002 has 16 divisors (see below), whose sum is σ = 1995545952. Its totient is φ = 538013520.

The previous prime is 1201564979. The next prime is 1201565003. The reversal of 1201565002 is 2005651021.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1201565003) by changing a digit.

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, 406113 + ... + 409060.

It is an arithmetic number, because the mean of its divisors is an integer number (124721622).

Almost surely, 2^1201565002 is an apocalyptic number.

1201565002 is a deficient number, since it is larger than the sum of its proper divisors (793980950).

1201565002 is a wasteful number, since it uses less digits than its factorization.

1201565002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815253.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1201565002 is about 34663.5976494074. The cubic root of 1201565002 is about 1063.1203303877.

The spelling of 1201565002 in words is "one billion, two hundred one million, five hundred sixty-five thousand, two".