511061494 has 8 divisors (see below), whose sum is σ = 767298168. Its totient is φ = 255295440.

The previous prime is 511061489. The next prime is 511061513. The reversal of 511061494 is 494160115.

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

It is a super-2 number, since 2×511061494² = 522367701299024072, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 114927 + ... + 119290.

It is an arithmetic number, because the mean of its divisors is an integer number (95912271).

Almost surely, 2^511061494 is an apocalyptic number.

511061494 is a deficient number, since it is larger than the sum of its proper divisors (256236674).

511061494 is a wasteful number, since it uses less digits than its factorization.

511061494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235310.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 511061494 is about 22606.6692371964. The cubic root of 511061494 is about 799.5108958240.

The spelling of 511061494 in words is "five hundred eleven million, sixty-one thousand, four hundred ninety-four".