1051623216 has 80 divisors (see below), whose sum is σ = 3449779200. Its totient is φ = 300462912.

The previous prime is 1051623193. The next prime is 1051623289. The reversal of 1051623216 is 6123261501.

1051623216 is a `hidden beast` number, since 10 + 5 + 1 + 623 + 21 + 6 = 666.

It is a super-2 number, since 2×1051623216² = 2211822776860365312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1051623216.

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 15 ways as a sum of consecutive naturals, for example, 170856 + ... + 176903.

It is an arithmetic number, because the mean of its divisors is an integer number (43122240).

Almost surely, 2^1051623216 is an apocalyptic number.

1051623216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1051623216 is an abundant number, since it is smaller than the sum of its proper divisors (2398155984).

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

1051623216 is a wasteful number, since it uses less digits than its factorization.

1051623216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347783 (or 347771 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1051623216 is about 32428.7405860912. The cubic root of 1051623216 is about 1016.9198429702.

Adding to 1051623216 its reverse (6123261501), we get a palindrome (7174884717).

The spelling of 1051623216 in words is "one billion, fifty-one million, six hundred twenty-three thousand, two hundred sixteen".