130742905 has 8 divisors (see below), whose sum is σ = 158509512. Its totient is φ = 103515648.

The previous prime is 130742873. The next prime is 130742957. The reversal of 130742905 is 509247031.

It can be written as a sum of positive squares in 4 ways, for example, as 12020089 + 118722816 = 3467^2 + 10896^2 .

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 130742905 - 2⁵ = 130742873 is a prime.

It is a Duffinian 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, 134302 + ... + 135271.

It is an arithmetic number, because the mean of its divisors is an integer number (19813689).

Almost surely, 2^130742905 is an apocalyptic number.

It is an amenable number.

130742905 is a deficient number, since it is larger than the sum of its proper divisors (27766607).

130742905 is an equidigital number, since it uses as much as digits as its factorization.

130742905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269675.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 130742905 is about 11434.2863791318. The cubic root of 130742905 is about 507.5428454367.

Adding to 130742905 its reverse (509247031), we get a palindrome (639989936).

It can be divided in two parts, 13074 and 2905, that multiplied together give a triangular number (37979970 = T₈₇₁₅).

The spelling of 130742905 in words is "one hundred thirty million, seven hundred forty-two thousand, nine hundred five".