1255730734 has 8 divisors (see below), whose sum is σ = 1883746800. Its totient is φ = 627815136.

The previous prime is 1255730719. The next prime is 1255730737. The reversal of 1255730734 is 4370375521.

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

It is a super-3 number, since 3×1255730734³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1255730693 and 1255730702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255730737) 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 3 ways as a sum of consecutive naturals, for example, 33382 + ... + 60214.

It is an arithmetic number, because the mean of its divisors is an integer number (235468350).

Almost surely, 2^1255730734 is an apocalyptic number.

1255730734 is a deficient number, since it is larger than the sum of its proper divisors (628016066).

1255730734 is a wasteful number, since it uses less digits than its factorization.

1255730734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50234.

The product of its (nonzero) digits is 88200, while the sum is 37.

The square root of 1255730734 is about 35436.2911998420. The cubic root of 1255730734 is about 1078.8610346402.

The spelling of 1255730734 in words is "one billion, two hundred fifty-five million, seven hundred thirty thousand, seven hundred thirty-four".