1205472431 has 8 divisors (see below), whose sum is σ = 1284951600. Its totient is φ = 1126945408.

The previous prime is 1205472419. The next prime is 1205472451. The reversal of 1205472431 is 1342745021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1205472431 - 2³⁰ = 131730607 is a prime.

It is a super-2 number, since 2×1205472431² = 2906327563802099522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1205472394 and 1205472403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205472451) 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, 235421 + ... + 240486.

It is an arithmetic number, because the mean of its divisors is an integer number (160618950).

Almost surely, 2^1205472431 is an apocalyptic number.

1205472431 is a deficient number, since it is larger than the sum of its proper divisors (79479169).

1205472431 is a wasteful number, since it uses less digits than its factorization.

1205472431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476073.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1205472431 is about 34719.9140407922. The cubic root of 1205472431 is about 1064.2714880809.

The spelling of 1205472431 in words is "one billion, two hundred five million, four hundred seventy-two thousand, four hundred thirty-one".