511284142 has 16 divisors (see below), whose sum is σ = 786788352. Its totient is φ = 249070680.

The previous prime is 511284139. The next prime is 511284143. The reversal of 511284142 is 241482115.

It is a super-2 number, since 2×511284142² = 522822947721352328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 511284142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511284143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8767 + ... + 33157.

It is an arithmetic number, because the mean of its divisors is an integer number (49174272).

Almost surely, 2^511284142 is an apocalyptic number.

511284142 is a deficient number, since it is larger than the sum of its proper divisors (275504210).

511284142 is a wasteful number, since it uses less digits than its factorization.

511284142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24663.

The product of its digits is 2560, while the sum is 28.

The square root of 511284142 is about 22611.5930885022. The cubic root of 511284142 is about 799.6269833920.

The spelling of 511284142 in words is "five hundred eleven million, two hundred eighty-four thousand, one hundred forty-two".