1051016890 has 48 divisors (see below), whose sum is σ = 2376533376. Its totient is φ = 327587040.

The previous prime is 1051016887. The next prime is 1051016893. The reversal of 1051016890 is 986101501.

It is an interprime number because it is at equal distance from previous prime (1051016887) and next prime (1051016893).

It is a super-2 number, since 2×1051016890² = 2209273006130544200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051016893) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 53574 + ... + 70513.

It is an arithmetic number, because the mean of its divisors is an integer number (49511112).

Almost surely, 2^1051016890 is an apocalyptic number.

1051016890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1051016890 is an abundant number, since it is smaller than the sum of its proper divisors (1325516486).

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

1051016890 is a wasteful number, since it uses less digits than its factorization.

1051016890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124123 (or 124112 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 1051016890 is about 32419.3906481908. The cubic root of 1051016890 is about 1016.7243662795.

The spelling of 1051016890 in words is "one billion, fifty-one million, sixteen thousand, eight hundred ninety".