4000001051 has 2 divisors, whose sum is σ = 4000001052. Its totient is φ = 4000001050.

The previous prime is 4000001039. The next prime is 4000001099. The reversal of 4000001051 is 1501000004.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4000001051 is a prime.

It is a super-2 number, since 2×4000001051² = 32000016816002209202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4000001351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2000000525 + 2000000526.

It is an arithmetic number, because the mean of its divisors is an integer number (2000000526).

Almost surely, 2^4000001051 is an apocalyptic number.

4000001051 is a deficient number, since it is larger than the sum of its proper divisors (1).

4000001051 is an equidigital number, since it uses as much as digits as its factorization.

4000001051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 4000001051 is about 63245.5615122516. The cubic root of 4000001051 is about 1587.4011909981.

Adding to 4000001051 its reverse (1501000004), we get a palindrome (5501001055).

The spelling of 4000001051 in words is "four billion, one thousand, fifty-one".