130154639 has 4 divisors (see below), whose sum is σ = 134642760. Its totient is φ = 125666520.

The previous prime is 130154627. The next prime is 130154653. The reversal of 130154639 is 936451031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936451031 = 6317 ⋅148243.

It is a cyclic number.

It is not a de Polignac number, because 130154639 - 2¹² = 130150543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130154699) 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, 2244017 + ... + 2244074.

It is an arithmetic number, because the mean of its divisors is an integer number (33660690).

Almost surely, 2^130154639 is an apocalyptic number.

130154639 is a deficient number, since it is larger than the sum of its proper divisors (4488121).

130154639 is an equidigital number, since it uses as much as digits as its factorization.

130154639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488120.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 130154639 is about 11408.5336042806. The cubic root of 130154639 is about 506.7804863655.

The spelling of 130154639 in words is "one hundred thirty million, one hundred fifty-four thousand, six hundred thirty-nine".