161141552 has 40 divisors (see below), whose sum is σ = 366799440. Its totient is φ = 67610880.

The previous prime is 161141551. The next prime is 161141557. The reversal of 161141552 is 255141161.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (161141551) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 32927 + ... + 37502.

It is an arithmetic number, because the mean of its divisors is an integer number (9169986).

Almost surely, 2^161141552 is an apocalyptic number.

It is an amenable number.

161141552 is an abundant number, since it is smaller than the sum of its proper divisors (205657888).

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

161141552 is a wasteful number, since it uses less digits than its factorization.

161141552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70461 (or 70455 counting only the distinct ones).

The product of its digits is 1200, while the sum is 26.

The square root of 161141552 is about 12694.1542451634. The cubic root of 161141552 is about 544.1715685776.

The spelling of 161141552 in words is "one hundred sixty-one million, one hundred forty-one thousand, five hundred fifty-two".