159699013 has 4 divisors (see below), whose sum is σ = 159884928. Its totient is φ = 159513100.

The previous prime is 159698983. The next prime is 159699041. The reversal of 159699013 is 310996951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 159699013 - 2¹³ = 159690821 is a prime.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 1596 and 99013 contains 159699013 itself.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159699613) 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, 91663 + ... + 93388.

It is an arithmetic number, because the mean of its divisors is an integer number (39971232).

Almost surely, 2^159699013 is an apocalyptic number.

It is an amenable number.

159699013 is a deficient number, since it is larger than the sum of its proper divisors (185915).

159699013 is an equidigital number, since it uses as much as digits as its factorization.

159699013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185914.

The product of its (nonzero) digits is 65610, while the sum is 43.

The square root of 159699013 is about 12637.2074842506. The cubic root of 159699013 is about 542.5428911277.

The spelling of 159699013 in words is "one hundred fifty-nine million, six hundred ninety-nine thousand, thirteen".