1202043149 has 2 divisors, whose sum is σ = 1202043150. Its totient is φ = 1202043148.

The previous prime is 1202043137. The next prime is 1202043163. The reversal of 1202043149 is 9413402021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 617274025 + 584769124 = 24845^2 + 24182^2 .

It is an emirp because it is prime and its reverse (9413402021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202043149 - 2¹⁶ = 1201977613 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202043169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601021574 + 601021575.

It is an arithmetic number, because the mean of its divisors is an integer number (601021575).

Almost surely, 2^1202043149 is an apocalyptic number.

It is an amenable number.

1202043149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202043149 is an equidigital number, since it uses as much as digits as its factorization.

1202043149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1202043149 is about 34670.4939249501. The cubic root of 1202043149 is about 1063.2613299405.

The spelling of 1202043149 in words is "one billion, two hundred two million, forty-three thousand, one hundred forty-nine".