992514138 has 64 divisors (see below), whose sum is σ = 2478339072. Its totient is φ = 257431680.

The previous prime is 992514137. The next prime is 992514139. The reversal of 992514138 is 831415299.

It is an interprime number because it is at equal distance from previous prime (992514137) and next prime (992514139).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 992514138.

It is not an unprimeable number, because it can be changed into a prime (992514137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 517870 + ... + 519782.

It is an arithmetic number, because the mean of its divisors is an integer number (38724048).

Almost surely, 2^992514138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 992514138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239169536).

992514138 is an abundant number, since it is smaller than the sum of its proper divisors (1485824934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

992514138 is a wasteful number, since it uses less digits than its factorization.

992514138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3059.

The product of its digits is 77760, while the sum is 42.

The square root of 992514138 is about 31504.1923876807. The cubic root of 992514138 is about 997.4984601832.

The spelling of 992514138 in words is "nine hundred ninety-two million, five hundred fourteen thousand, one hundred thirty-eight".