161629115 has 8 divisors (see below), whose sum is σ = 205364160. Its totient is φ = 121697152.

The previous prime is 161629109. The next prime is 161629121. The reversal of 161629115 is 511926161.

161629115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (161629109) and next prime (161629121).

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

It is not a de Polignac number, because 161629115 - 2¹⁰ = 161628091 is a prime.

It is a super-3 number, since 3×161629115³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 950675 + ... + 950844.

It is an arithmetic number, because the mean of its divisors is an integer number (25670520).

Almost surely, 2^161629115 is an apocalyptic number.

161629115 is a deficient number, since it is larger than the sum of its proper divisors (43735045).

161629115 is a wasteful number, since it uses less digits than its factorization.

161629115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901541.

The product of its digits is 3240, while the sum is 32.

The square root of 161629115 is about 12713.3439739511. The cubic root of 161629115 is about 544.7198459129.

The spelling of 161629115 in words is "one hundred sixty-one million, six hundred twenty-nine thousand, one hundred fifteen".