130405122445 has 8 divisors (see below), whose sum is σ = 168523542936. Its totient is φ = 96299167296.

The previous prime is 130405122439. The next prime is 130405122451. The reversal of 130405122445 is 544221504031.

It is an interprime number because it is at equal distance from previous prime (130405122439) and next prime (130405122451).

It can be written as a sum of positive squares in 4 ways, for example, as 4702256329 + 125702866116 = 68573^2 + 354546^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 130405122445 - 2²³ = 130396733837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1003116262 + ... + 1003116391.

It is an arithmetic number, because the mean of its divisors is an integer number (21065442867).

Almost surely, 2^130405122445 is an apocalyptic number.

It is an amenable number.

130405122445 is a deficient number, since it is larger than the sum of its proper divisors (38118420491).

130405122445 is a wasteful number, since it uses less digits than its factorization.

130405122445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006232671.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 130405122445 its reverse (544221504031), we get a palindrome (674626626476).

The spelling of 130405122445 in words is "one hundred thirty billion, four hundred five million, one hundred twenty-two thousand, four hundred forty-five".