161151000 has 64 divisors (see below), whose sum is σ = 502800480. Its totient is φ = 42972800.

The previous prime is 161150987. The next prime is 161151017. The reversal of 161151000 is 151161.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23859 + ... + 29858.

Almost surely, 2^161151000 is an apocalyptic number.

161151000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161151000 is an abundant number, since it is smaller than the sum of its proper divisors (341649480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161151000 is a wasteful number, since it uses less digits than its factorization.

161151000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53741 (or 53727 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 161151000 is about 12694.5263795070. The cubic root of 161151000 is about 544.1822036010.

The spelling of 161151000 in words is "one hundred sixty-one million, one hundred fifty-one thousand".