161676148 has 6 divisors (see below), whose sum is σ = 282933266. Its totient is φ = 80838072.

The previous prime is 161676133. The next prime is 161676181. The reversal of 161676148 is 841676161.

It can be written as a sum of positive squares in only one way, i.e., 129549924 + 32126224 = 11382^2 + 5668^2 .

It is a super-2 number, since 2×161676148² = 52278353664235808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 161676148.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20209515 + ... + 20209522.

Almost surely, 2^161676148 is an apocalyptic number.

It is an amenable number.

161676148 is a deficient number, since it is larger than the sum of its proper divisors (121257118).

161676148 is a wasteful number, since it uses less digits than its factorization.

161676148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40419041 (or 40419039 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 161676148 is about 12715.1935887740. The cubic root of 161676148 is about 544.7726774090.

The spelling of 161676148 in words is "one hundred sixty-one million, six hundred seventy-six thousand, one hundred forty-eight".