145324191 has 16 divisors (see below), whose sum is σ = 201166560. Its totient is φ = 93206400.

The previous prime is 145324171. The next prime is 145324199. The reversal of 145324191 is 191423541.

It is not a de Polignac number, because 145324191 - 2¹³ = 145315999 is a prime.

It is a super-2 number, since 2×145324191² = 42238240979608962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145324199) 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, 22641 + ... + 28341.

It is an arithmetic number, because the mean of its divisors is an integer number (12572910).

Almost surely, 2^145324191 is an apocalyptic number.

145324191 is a deficient number, since it is larger than the sum of its proper divisors (55842369).

145324191 is a wasteful number, since it uses less digits than its factorization.

145324191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6026.

The product of its digits is 4320, while the sum is 30.

The square root of 145324191 is about 12055.0483615786. The cubic root of 145324191 is about 525.7500282073.

The spelling of 145324191 in words is "one hundred forty-five million, three hundred twenty-four thousand, one hundred ninety-one".