1205050429 has 4 divisors (see below), whose sum is σ = 1314600480. Its totient is φ = 1095500380.

The previous prime is 1205050417. The next prime is 1205050439. The reversal of 1205050429 is 9240505021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9240505021 = 11 ⋅840045911.

It is a cyclic number.

It is not a de Polignac number, because 1205050429 - 2⁹ = 1205049917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1205050397 and 1205050406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205050439) 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, 54775009 + ... + 54775030.

It is an arithmetic number, because the mean of its divisors is an integer number (328650120).

Almost surely, 2^1205050429 is an apocalyptic number.

It is an amenable number.

1205050429 is a deficient number, since it is larger than the sum of its proper divisors (109550051).

1205050429 is a wasteful number, since it uses less digits than its factorization.

1205050429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109550050.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 1205050429 is about 34713.8362760442. The cubic root of 1205050429 is about 1064.1472830793.

The spelling of 1205050429 in words is "one billion, two hundred five million, fifty thousand, four hundred twenty-nine".