145694101 has 12 divisors (see below), whose sum is σ = 170708160. Its totient is φ = 123976440.

The previous prime is 145694099. The next prime is 145694111. The reversal of 145694101 is 101496541.

It is not a de Polignac number, because 145694101 - 2¹ = 145694099 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145694111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3885 + ... + 17506.

It is an arithmetic number, because the mean of its divisors is an integer number (14225680).

Almost surely, 2^145694101 is an apocalyptic number.

It is an amenable number.

145694101 is a deficient number, since it is larger than the sum of its proper divisors (25014059).

145694101 is a wasteful number, since it uses less digits than its factorization.

145694101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21544 (or 21537 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 145694101 is about 12070.3811455977. The cubic root of 145694101 is about 526.1957338025.

The spelling of 145694101 in words is "one hundred forty-five million, six hundred ninety-four thousand, one hundred one".