402105051 has 6 divisors (see below), whose sum is σ = 580818420. Its totient is φ = 268070028.

The previous prime is 402105049. The next prime is 402105071. The reversal of 402105051 is 150501204.

It is not a de Polignac number, because 402105051 - 2¹ = 402105049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402105031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22339161 + ... + 22339178.

It is an arithmetic number, because the mean of its divisors is an integer number (96803070).

Almost surely, 2^402105051 is an apocalyptic number.

402105051 is a deficient number, since it is larger than the sum of its proper divisors (178713369).

402105051 is a wasteful number, since it uses less digits than its factorization.

402105051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44678345 (or 44678342 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 402105051 is about 20052.5572184697. The cubic root of 402105051 is about 738.0965513619.

Adding to 402105051 its reverse (150501204), we get a palindrome (552606255).

The spelling of 402105051 in words is "four hundred two million, one hundred five thousand, fifty-one".