2141454909 has 16 divisors (see below), whose sum is σ = 3123348480. Its totient is φ = 1294307760.

The previous prime is 2141454881. The next prime is 2141454961. The reversal of 2141454909 is 9094541412.

It is not a de Polignac number, because 2141454909 - 2⁹ = 2141454397 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141454709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76299 + ... + 100520.

It is an arithmetic number, because the mean of its divisors is an integer number (195209280).

Almost surely, 2^2141454909 is an apocalyptic number.

It is an amenable number.

2141454909 is a deficient number, since it is larger than the sum of its proper divisors (981893571).

2141454909 is a wasteful number, since it uses less digits than its factorization.

2141454909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177200.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 2141454909 is about 46275.8566533349. The cubic root of 2141454909 is about 1288.9507139556.

The spelling of 2141454909 in words is "two billion, one hundred forty-one million, four hundred fifty-four thousand, nine hundred nine".