1205425534 has 16 divisors (see below), whose sum is σ = 1846177920. Its totient is φ = 590081440.

The previous prime is 1205425457. The next prime is 1205425589. The reversal of 1205425534 is 4355245021.

It is a super-3 number, since 3×1205425534³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1205425496 and 1205425505.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38904 + ... + 62644.

It is an arithmetic number, because the mean of its divisors is an integer number (115386120).

Almost surely, 2^1205425534 is an apocalyptic number.

1205425534 is a deficient number, since it is larger than the sum of its proper divisors (640752386).

1205425534 is a wasteful number, since it uses less digits than its factorization.

1205425534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24275.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1205425534 is about 34719.2386725285. The cubic root of 1205425534 is about 1064.2576866351.

The spelling of 1205425534 in words is "one billion, two hundred five million, four hundred twenty-five thousand, five hundred thirty-four".