2051151001 has 4 divisors (see below), whose sum is σ = 2052451600. Its totient is φ = 2049850404.

The previous prime is 2051150999. The next prime is 2051151013. The reversal of 2051151001 is 1001511502.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1001511502 = 2 ⋅500755751.

It is a cyclic number.

It is not a de Polignac number, because 2051151001 - 2¹ = 2051150999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2051151071) 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, 647931 + ... + 651088.

It is an arithmetic number, because the mean of its divisors is an integer number (513112900).

Almost surely, 2^2051151001 is an apocalyptic number.

It is an amenable number.

2051151001 is a deficient number, since it is larger than the sum of its proper divisors (1300599).

2051151001 is a wasteful number, since it uses less digits than its factorization.

2051151001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300598.

The product of its (nonzero) digits is 50, while the sum is 16.

The square root of 2051151001 is about 45289.6345867352. The cubic root of 2051151001 is about 1270.5717972029.

Adding to 2051151001 its reverse (1001511502), we get a palindrome (3052662503).

It can be divided in two parts, 205115 and 1001, that added together give a square (206116 = 454²).

The spelling of 2051151001 in words is "two billion, fifty-one million, one hundred fifty-one thousand, one".