1578242141 has 16 divisors (see below), whose sum is σ = 1961427456. Its totient is φ = 1238789376.

The previous prime is 1578242131. The next prime is 1578242161. The reversal of 1578242141 is 1412428751.

It is a cyclic number.

It is not a de Polignac number, because 1578242141 - 2¹⁴ = 1578225757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1578242101) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 174821 + ... + 183626.

It is an arithmetic number, because the mean of its divisors is an integer number (122589216).

Almost surely, 2^1578242141 is an apocalyptic number.

It is an amenable number.

1578242141 is a deficient number, since it is larger than the sum of its proper divisors (383185315).

1578242141 is a wasteful number, since it uses less digits than its factorization.

1578242141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358508.

The product of its digits is 17920, while the sum is 35.

The square root of 1578242141 is about 39727.0958037458. The cubic root of 1578242141 is about 1164.2811829313.

The spelling of 1578242141 in words is "one billion, five hundred seventy-eight million, two hundred forty-two thousand, one hundred forty-one".