402101451 has 12 divisors (see below), whose sum is σ = 581395360. Its totient is φ = 267798960.

The previous prime is 402101449. The next prime is 402101467. The reversal of 402101451 is 154101204.

402101451 is a `hidden beast` number, since 4 + 0 + 210 + 1 + 451 = 666.

It is not a de Polignac number, because 402101451 - 2¹ = 402101449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402101251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12691 + ... + 31068.

Almost surely, 2^402101451 is an apocalyptic number.

402101451 is a deficient number, since it is larger than the sum of its proper divisors (179293909).

402101451 is a wasteful number, since it uses less digits than its factorization.

402101451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44786 (or 44783 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 402101451 is about 20052.4674541564. The cubic root of 402101451 is about 738.0943486576.

Adding to 402101451 its reverse (154101204), we get a palindrome (556202655).

The spelling of 402101451 in words is "four hundred two million, one hundred one thousand, four hundred fifty-one".