1051005061 has 4 divisors (see below), whose sum is σ = 1052428000. Its totient is φ = 1049582124.

The previous prime is 1051005049. The next prime is 1051005077. The reversal of 1051005061 is 1605001501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1051005061 - 2¹⁹ = 1050480773 is a prime.

It is a super-2 number, since 2×1051005061² = 2209223276495227442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051005041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 710361 + ... + 711838.

It is an arithmetic number, because the mean of its divisors is an integer number (263107000).

Almost surely, 2^1051005061 is an apocalyptic number.

It is an amenable number.

1051005061 is a deficient number, since it is larger than the sum of its proper divisors (1422939).

1051005061 is an equidigital number, since it uses as much as digits as its factorization.

1051005061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1422938.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1051005061 is about 32419.2082105655. The cubic root of 1051005061 is about 1016.7205519171.

Adding to 1051005061 its reverse (1605001501), we get a palindrome (2656006562).

The spelling of 1051005061 in words is "one billion, fifty-one million, five thousand, sixty-one".