1999616134 has 8 divisors (see below), whose sum is σ = 3025968120. Its totient is φ = 990960096.

The previous prime is 1999616131. The next prime is 1999616137. The reversal of 1999616134 is 4316169991.

It is an interprime number because it is at equal distance from previous prime (1999616131) and next prime (1999616137).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1999616131) 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, 4423704 + ... + 4424155.

It is an arithmetic number, because the mean of its divisors is an integer number (378246015).

Almost surely, 2^1999616134 is an apocalyptic number.

1999616134 is a deficient number, since it is larger than the sum of its proper divisors (1026351986).

1999616134 is a wasteful number, since it uses less digits than its factorization.

1999616134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8847974.

The product of its digits is 314928, while the sum is 49.

The square root of 1999616134 is about 44717.0675916925. The cubic root of 1999616134 is about 1259.8404379283.

The spelling of 1999616134 in words is "one billion, nine hundred ninety-nine million, six hundred sixteen thousand, one hundred thirty-four".