511112942 has 4 divisors (see below), whose sum is σ = 766669416. Its totient is φ = 255556470.

The previous prime is 511112933. The next prime is 511112951. The reversal of 511112942 is 249211115.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 249211115 = 5 ⋅49842223.

It is an interprime number because it is at equal distance from previous prime (511112933) and next prime (511112951).

It is a super-2 number, since 2×511112942² = 522472878959790728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127778234 + ... + 127778237.

It is an arithmetic number, because the mean of its divisors is an integer number (191667354).

Almost surely, 2^511112942 is an apocalyptic number.

511112942 is a deficient number, since it is larger than the sum of its proper divisors (255556474).

511112942 is a wasteful number, since it uses less digits than its factorization.

511112942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255556473.

The product of its digits is 720, while the sum is 26.

The square root of 511112942 is about 22607.8071028572. The cubic root of 511112942 is about 799.5377235521.

The spelling of 511112942 in words is "five hundred eleven million, one hundred twelve thousand, nine hundred forty-two".