145274193 has 12 divisors (see below), whose sum is σ = 214959108. Its totient is φ = 94487040.

The previous prime is 145274183. The next prime is 145274201. The reversal of 145274193 is 391472541.

145274193 is a `hidden beast` number, since 1 + 4 + 527 + 41 + 93 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2782224 + 142491969 = 1668^2 + 11937^2 .

It is not a de Polignac number, because 145274193 - 2⁴ = 145274177 is a prime.

It is a super-2 number, since 2×145274193² = 42209182303602498, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145274183) 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, 196480 + ... + 197217.

It is an arithmetic number, because the mean of its divisors is an integer number (17913259).

Almost surely, 2^145274193 is an apocalyptic number.

It is an amenable number.

145274193 is a deficient number, since it is larger than the sum of its proper divisors (69684915).

145274193 is a wasteful number, since it uses less digits than its factorization.

145274193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393744 (or 393741 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 145274193 is about 12052.9744461689. The cubic root of 145274193 is about 525.6897274759.

The spelling of 145274193 in words is "one hundred forty-five million, two hundred seventy-four thousand, one hundred ninety-three".