130402 has 8 divisors (see below), whose sum is σ = 197676. Its totient is φ = 64512.

The previous prime is 130399. The next prime is 130409. The reversal of 130402 is 204031.

It can be written as a sum of positive squares in 2 ways, for example, as 130321 + 81 = 361^2 + 9^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×130402³ = 6652333471574424, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63 + ... + 514.

2¹³⁰⁴⁰² is an apocalyptic number.

130402 is a deficient number, since it is larger than the sum of its proper divisors (67274).

130402 is a wasteful number, since it uses less digits than its factorization.

130402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 130402 is about 361.1121709386. The cubic root of 130402 is about 50.7101331369.

Adding to 130402 its reverse (204031), we get a palindrome (334433).

It can be divided in two parts, 1 and 30402, that added together give a palindrome (30403).

The spelling of 130402 in words is "one hundred thirty thousand, four hundred two".