305140534 has 8 divisors (see below), whose sum is σ = 464157648. Its totient is φ = 150421320.

The previous prime is 305140529. The next prime is 305140541. The reversal of 305140534 is 435041503.

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

It is a super-2 number, since 2×305140534² = 186221490979610312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 305140499 and 305140508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1074297 + ... + 1074580.

It is an arithmetic number, because the mean of its divisors is an integer number (58019706).

Almost surely, 2^305140534 is an apocalyptic number.

305140534 is a deficient number, since it is larger than the sum of its proper divisors (159017114).

305140534 is a wasteful number, since it uses less digits than its factorization.

305140534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2148950.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 305140534 is about 17468.2722099239. The cubic root of 305140534 is about 673.2349195011.

The spelling of 305140534 in words is "three hundred five million, one hundred forty thousand, five hundred thirty-four".