161629485 has 16 divisors (see below), whose sum is σ = 272218560. Its totient is φ = 81665280.

The previous prime is 161629483. The next prime is 161629511. The reversal of 161629485 is 584926161.

It is not a de Polignac number, because 161629485 - 2¹ = 161629483 is a prime.

It is a super-2 number, since 2×161629485² = 52248180842730450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161629483) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283276 + ... + 283845.

It is an arithmetic number, because the mean of its divisors is an integer number (17013660).

Almost surely, 2^161629485 is an apocalyptic number.

161629485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161629485 is a deficient number, since it is larger than the sum of its proper divisors (110589075).

161629485 is a wasteful number, since it uses less digits than its factorization.

161629485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567148.

The product of its digits is 103680, while the sum is 42.

The square root of 161629485 is about 12713.3585255825. The cubic root of 161629485 is about 544.7202615686.

The spelling of 161629485 in words is "one hundred sixty-one million, six hundred twenty-nine thousand, four hundred eighty-five".