16145971 has 8 divisors (see below), whose sum is σ = 17263584. Its totient is φ = 15047040.

The previous prime is 16145963. The next prime is 16145993. The reversal of 16145971 is 17954161.

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

It is not a de Polignac number, because 16145971 - 2³ = 16145963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16145951) 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, 2860 + ... + 6361.

It is an arithmetic number, because the mean of its divisors is an integer number (2157948).

Almost surely, 2^16145971 is an apocalyptic number.

16145971 is a deficient number, since it is larger than the sum of its proper divisors (1117613).

16145971 is a wasteful number, since it uses less digits than its factorization.

16145971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9341.

The product of its digits is 7560, while the sum is 34.

The square root of 16145971 is about 4018.2049474859. The cubic root of 16145971 is about 252.7481910851.

The spelling of 16145971 in words is "sixteen million, one hundred forty-five thousand, nine hundred seventy-one".