1051550120 has 16 divisors (see below), whose sum is σ = 2365987860. Its totient is φ = 420620032.

The previous prime is 1051550077. The next prime is 1051550153. The reversal of 1051550120 is 210551501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 985583236 + 65966884 = 31394^2 + 8122^2 .

It is a super-2 number, since 2×1051550120² = 2211515309744028800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1051550092 and 1051550101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13144337 + ... + 13144416.

Almost surely, 2^1051550120 is an apocalyptic number.

1051550120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051550120 is an abundant number, since it is smaller than the sum of its proper divisors (1314437740).

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

1051550120 is a wasteful number, since it uses less digits than its factorization.

1051550120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26288764 (or 26288760 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 20.

The square root of 1051550120 is about 32427.6135415482. The cubic root of 1051550120 is about 1016.8962811425.

The spelling of 1051550120 in words is "one billion, fifty-one million, five hundred fifty thousand, one hundred twenty".