1051051603 has 4 divisors (see below), whose sum is σ = 1201201840. Its totient is φ = 900901368.

The previous prime is 1051051601. The next prime is 1051051607. The reversal of 1051051603 is 3061501501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1051051603 - 2¹ = 1051051601 is a prime.

It is a super-2 number, since 2×1051051603² = 2209418944337739218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1051051601) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 75075108 + ... + 75075121.

It is an arithmetic number, because the mean of its divisors is an integer number (300300460).

Almost surely, 2^1051051603 is an apocalyptic number.

1051051603 is a deficient number, since it is larger than the sum of its proper divisors (150150237).

1051051603 is an equidigital number, since it uses as much as digits as its factorization.

1051051603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150150236.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1051051603 is about 32419.9260178058. The cubic root of 1051051603 is about 1016.7355596182.

The spelling of 1051051603 in words is "one billion, fifty-one million, fifty-one thousand, six hundred three".