1061820355 has 16 divisors (see below), whose sum is σ = 1337807520. Its totient is φ = 807916032.

The previous prime is 1061820343. The next prime is 1061820427. The reversal of 1061820355 is 5530281601.

It is a cyclic number.

It is not a de Polignac number, because 1061820355 - 2¹⁷ = 1061689283 is a prime.

It is a super-2 number, since 2×1061820355² = 2254924932584652050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44934 + ... + 64363.

It is an arithmetic number, because the mean of its divisors is an integer number (83612970).

Almost surely, 2^1061820355 is an apocalyptic number.

1061820355 is a deficient number, since it is larger than the sum of its proper divisors (275987165).

1061820355 is a wasteful number, since it uses less digits than its factorization.

1061820355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109398.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 1061820355 is about 32585.5850799092. The cubic root of 1061820355 is about 1020.1961544451.

The spelling of 1061820355 in words is "one billion, sixty-one million, eight hundred twenty thousand, three hundred fifty-five".