402103081 has 4 divisors (see below), whose sum is σ = 402160464. Its totient is φ = 402045700.

The previous prime is 402103073. The next prime is 402103109. The reversal of 402103081 is 180301204.

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 402103081 - 2³ = 402103073 is a prime.

It is a super-2 number, since 2×402103081² = 323373775499385122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402103781) 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 3 ways as a sum of consecutive naturals, for example, 16435 + ... + 32776.

It is an arithmetic number, because the mean of its divisors is an integer number (100540116).

Almost surely, 2^402103081 is an apocalyptic number.

It is an amenable number.

402103081 is a deficient number, since it is larger than the sum of its proper divisors (57383).

402103081 is an equidigital number, since it uses as much as digits as its factorization.

402103081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57382.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 402103081 is about 20052.5080974924. The cubic root of 402103081 is about 738.0953459948.

Adding to 402103081 its reverse (180301204), we get a palindrome (582404285).

The spelling of 402103081 in words is "four hundred two million, one hundred three thousand, eighty-one".