2909505142 has 16 divisors (see below), whose sum is σ = 4382842464. Its totient is φ = 1448568000.

The previous prime is 2909505139. The next prime is 2909505149. The reversal of 2909505142 is 2415059092.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2909505149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819892 + ... + 823432.

It is an arithmetic number, because the mean of its divisors is an integer number (273927654).

Almost surely, 2^2909505142 is an apocalyptic number.

2909505142 is a deficient number, since it is larger than the sum of its proper divisors (1473337322).

2909505142 is a wasteful number, since it uses less digits than its factorization.

2909505142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5175.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 2909505142 is about 53939.8289022129. The cubic root of 2909505142 is about 1427.5994644243.

The spelling of 2909505142 in words is "two billion, nine hundred nine million, five hundred five thousand, one hundred forty-two".