1659397094 has 8 divisors (see below), whose sum is σ = 2489469528. Its totient is φ = 829573920.

The previous prime is 1659397073. The next prime is 1659397177. The reversal of 1659397094 is 4907939561.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44672 + ... + 72899.

It is an arithmetic number, because the mean of its divisors is an integer number (311183691).

Almost surely, 2^1659397094 is an apocalyptic number.

1659397094 is a deficient number, since it is larger than the sum of its proper divisors (830072434).

1659397094 is a wasteful number, since it uses less digits than its factorization.

1659397094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124630.

The product of its (nonzero) digits is 1837080, while the sum is 53.

The square root of 1659397094 is about 40735.6980301062. The cubic root of 1659397094 is about 1183.9047828492.

The spelling of 1659397094 in words is "one billion, six hundred fifty-nine million, three hundred ninety-seven thousand, ninety-four".