161946130 has 32 divisors (see below), whose sum is σ = 295783488. Its totient is φ = 63835200.

The previous prime is 161946119. The next prime is 161946143. The reversal of 161946130 is 31649161.

It is a super-3 number, since 3×161946130³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161946092 and 161946101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236769 + ... + 237451.

It is an arithmetic number, because the mean of its divisors is an integer number (9243234).

Almost surely, 2^161946130 is an apocalyptic number.

161946130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161946130 is a deficient number, since it is larger than the sum of its proper divisors (133837358).

161946130 is a wasteful number, since it uses less digits than its factorization.

161946130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 161946130 is about 12725.8056719408. The cubic root of 161946130 is about 545.0757462826.

The spelling of 161946130 in words is "one hundred sixty-one million, nine hundred forty-six thousand, one hundred thirty".