145117574 has 8 divisors (see below), whose sum is σ = 248773008. Its totient is φ = 62193240.

The previous prime is 145117547. The next prime is 145117579. The reversal of 145117574 is 475711541.

145117574 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145117574² = 42118220567290952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145117579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5182757 + ... + 5182784.

It is an arithmetic number, because the mean of its divisors is an integer number (31096626).

Almost surely, 2^145117574 is an apocalyptic number.

145117574 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145117574 is a deficient number, since it is larger than the sum of its proper divisors (103655434).

145117574 is a wasteful number, since it uses less digits than its factorization.

145117574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10365550.

The product of its digits is 19600, while the sum is 35.

The square root of 145117574 is about 12046.4755841698. The cubic root of 145117574 is about 525.5007455170.

The spelling of 145117574 in words is "one hundred forty-five million, one hundred seventeen thousand, five hundred seventy-four".