1909455134 has 8 divisors (see below), whose sum is σ = 2874376368. Its totient is φ = 951329680.

The previous prime is 1909455131. The next prime is 1909455139. The reversal of 1909455134 is 4315549091.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1909455091 and 1909455100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1909455131) 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, 1698242 + ... + 1699365.

It is an arithmetic number, because the mean of its divisors is an integer number (359297046).

Almost surely, 2^1909455134 is an apocalyptic number.

1909455134 is a deficient number, since it is larger than the sum of its proper divisors (964921234).

1909455134 is a wasteful number, since it uses less digits than its factorization.

1909455134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397890.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 1909455134 is about 43697.3126633664. The cubic root of 1909455134 is about 1240.6134525329.

The spelling of 1909455134 in words is "one billion, nine hundred nine million, four hundred fifty-five thousand, one hundred thirty-four".