161677153 has 8 divisors (see below), whose sum is σ = 178860096. Its totient is φ = 144908400.

The previous prime is 161677129. The next prime is 161677171. The reversal of 161677153 is 351776161.

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

It is a cyclic number.

It is not a de Polignac number, because 161677153 - 2¹³ = 161668961 is a prime.

It is a super-2 number, since 2×161677153² = 52279003604370818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161677253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102726 + ... + 104287.

It is an arithmetic number, because the mean of its divisors is an integer number (22357512).

Almost surely, 2^161677153 is an apocalyptic number.

It is an amenable number.

161677153 is a deficient number, since it is larger than the sum of its proper divisors (17182943).

161677153 is a wasteful number, since it uses less digits than its factorization.

161677153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207095.

The product of its digits is 26460, while the sum is 37.

The square root of 161677153 is about 12715.2331083626. The cubic root of 161677153 is about 544.7738061993.

The spelling of 161677153 in words is "one hundred sixty-one million, six hundred seventy-seven thousand, one hundred fifty-three".