1202939661 has 24 divisors (see below), whose sum is σ = 2035403424. Its totient is φ = 624902880.

The previous prime is 1202939659. The next prime is 1202939711. The reversal of 1202939661 is 1669392021.

It is not a de Polignac number, because 1202939661 - 2¹ = 1202939659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202939611) 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 23 ways as a sum of consecutive naturals, for example, 370350 + ... + 373583.

It is an arithmetic number, because the mean of its divisors is an integer number (84808476).

Almost surely, 2^1202939661 is an apocalyptic number.

1202939661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1202939661 is a deficient number, since it is larger than the sum of its proper divisors (832463763).

1202939661 is a wasteful number, since it uses less digits than its factorization.

1202939661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743961 (or 743954 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 1202939661 is about 34683.4205493057. The cubic root of 1202939661 is about 1063.5255993391.

The spelling of 1202939661 in words is "one billion, two hundred two million, nine hundred thirty-nine thousand, six hundred sixty-one".