1202040997 has 4 divisors (see below), whose sum is σ = 1206143820. Its totient is φ = 1197938176.

The previous prime is 1202040971. The next prime is 1202041013. The reversal of 1202040997 is 7990402021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1169024481 + 33016516 = 34191^2 + 5746^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202040997 - 2²³ = 1193652389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202040937) 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, 2050972 + ... + 2051557.

It is an arithmetic number, because the mean of its divisors is an integer number (301535955).

Almost surely, 2^1202040997 is an apocalyptic number.

It is an amenable number.

1202040997 is a deficient number, since it is larger than the sum of its proper divisors (4102823).

1202040997 is an equidigital number, since it uses as much as digits as its factorization.

1202040997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4102822.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 1202040997 is about 34670.4628899010. The cubic root of 1202040997 is about 1063.2606954265.

The spelling of 1202040997 in words is "one billion, two hundred two million, forty thousand, nine hundred ninety-seven".