161003070 has 48 divisors (see below), whose sum is σ = 433049760. Its totient is φ = 41452992.

The previous prime is 161003069. The next prime is 161003071. The reversal of 161003070 is 70300161.

It is an interprime number because it is at equal distance from previous prime (161003069) and next prime (161003071).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161003071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28234 + ... + 33453.

It is an arithmetic number, because the mean of its divisors is an integer number (9021870).

Almost surely, 2^161003070 is an apocalyptic number.

161003070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161003070 is an abundant number, since it is smaller than the sum of its proper divisors (272046690).

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

161003070 is a wasteful number, since it uses less digits than its factorization.

161003070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61729 (or 61726 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 161003070 is about 12688.6985148202. The cubic root of 161003070 is about 544.0156403195.

The spelling of 161003070 in words is "one hundred sixty-one million, three thousand, seventy".