19196145 has 48 divisors (see below), whose sum is σ = 36796032. Its totient is φ = 9208320.

The previous prime is 19196129. The next prime is 19196167. The reversal of 19196145 is 54169191.

It is not a de Polignac number, because 19196145 - 2⁴ = 19196129 is a prime.

It is a super-2 number, since 2×19196145² = 736983965722050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17050 + ... + 18140.

It is an arithmetic number, because the mean of its divisors is an integer number (766584).

Almost surely, 2^19196145 is an apocalyptic number.

19196145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19196145 is a deficient number, since it is larger than the sum of its proper divisors (17599887).

19196145 is a wasteful number, since it uses less digits than its factorization.

19196145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142 (or 1139 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 19196145 is about 4381.3405482797. The cubic root of 19196145 is about 267.7552575554.

The spelling of 19196145 in words is "nineteen million, one hundred ninety-six thousand, one hundred forty-five".