161652142 has 8 divisors (see below), whose sum is σ = 253020816. Its totient is φ = 77311872.

The previous prime is 161652137. The next prime is 161652143. The reversal of 161652142 is 241256161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×161652142² = 52262830026376328, 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 161652142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161652143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1757043 + ... + 1757134.

It is an arithmetic number, because the mean of its divisors is an integer number (31627602).

Almost surely, 2^161652142 is an apocalyptic number.

161652142 is a deficient number, since it is larger than the sum of its proper divisors (91368674).

161652142 is a wasteful number, since it uses less digits than its factorization.

161652142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3514202.

The product of its digits is 2880, while the sum is 28.

The square root of 161652142 is about 12714.2495649566. The cubic root of 161652142 is about 544.7457130930.

The spelling of 161652142 in words is "one hundred sixty-one million, six hundred fifty-two thousand, one hundred forty-two".