159099742 has 16 divisors (see below), whose sum is σ = 252624240. Its totient is φ = 75019392.

The previous prime is 159099727. The next prime is 159099751. The reversal of 159099742 is 247990951.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 159099692 and 159099701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29403 + ... + 34390.

It is an arithmetic number, because the mean of its divisors is an integer number (15789015).

Almost surely, 2^159099742 is an apocalyptic number.

159099742 is a deficient number, since it is larger than the sum of its proper divisors (93524498).

159099742 is a wasteful number, since it uses less digits than its factorization.

159099742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63867.

The product of its (nonzero) digits is 204120, while the sum is 46.

The square root of 159099742 is about 12613.4746204208. The cubic root of 159099742 is about 541.8634092517.

It can be divided in two parts, 15909 and 9742, that added together give a triangular number (25651 = T₂₂₆).

The spelling of 159099742 in words is "one hundred fifty-nine million, ninety-nine thousand, seven hundred forty-two".