145234193 has 4 divisors (see below), whose sum is σ = 156406068. Its totient is φ = 134062320.

The previous prime is 145234129. The next prime is 145234211. The reversal of 145234193 is 391432541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57942544 + 87291649 = 7612^2 + 9343^2 .

It is a cyclic number.

It is not a de Polignac number, because 145234193 - 2⁶ = 145234129 is a prime.

It is a super-2 number, since 2×145234193² = 42185941632722498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145230193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5585918 + ... + 5585943.

It is an arithmetic number, because the mean of its divisors is an integer number (39101517).

Almost surely, 2^145234193 is an apocalyptic number.

145234193 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

145234193 is a deficient number, since it is larger than the sum of its proper divisors (11171875).

145234193 is a wasteful number, since it uses less digits than its factorization.

145234193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11171874.

The product of its digits is 12960, while the sum is 32.

The square root of 145234193 is about 12051.3149904896. The cubic root of 145234193 is about 525.6414749981.

The spelling of 145234193 in words is "one hundred forty-five million, two hundred thirty-four thousand, one hundred ninety-three".