3942544147 has 4 divisors (see below), whose sum is σ = 3942720936. Its totient is φ = 3942367360.

The previous prime is 3942544129. The next prime is 3942544157. The reversal of 3942544147 is 7414452493.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3942544147 - 2²⁷ = 3808326419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3942544117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49129 + ... + 101482.

It is an arithmetic number, because the mean of its divisors is an integer number (985680234).

Almost surely, 2^3942544147 is an apocalyptic number.

3942544147 is a deficient number, since it is larger than the sum of its proper divisors (176789).

3942544147 is a wasteful number, since it uses less digits than its factorization.

3942544147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176788.

The product of its digits is 483840, while the sum is 43.

The square root of 3942544147 is about 62789.6818513998. The cubic root of 3942544147 is about 1579.7639110740.

The spelling of 3942544147 in words is "three billion, nine hundred forty-two million, five hundred forty-four thousand, one hundred forty-seven".