405140102 has 4 divisors (see below), whose sum is σ = 607710156. Its totient is φ = 202570050.

The previous prime is 405140069. The next prime is 405140119. The reversal of 405140102 is 201041504.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 101285024 + ... + 101285027.

It is an arithmetic number, because the mean of its divisors is an integer number (151927539).

Almost surely, 2^405140102 is an apocalyptic number.

405140102 is a deficient number, since it is larger than the sum of its proper divisors (202570054).

405140102 is a wasteful number, since it uses less digits than its factorization.

405140102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202570053.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 405140102 is about 20128.0923586911. The cubic root of 405140102 is about 739.9489263509.

Adding to 405140102 its reverse (201041504), we get a palindrome (606181606).

The spelling of 405140102 in words is "four hundred five million, one hundred forty thousand, one hundred two".