145541174 has 4 divisors (see below), whose sum is σ = 218311764. Its totient is φ = 72770586.

The previous prime is 145541161. The next prime is 145541177. The reversal of 145541174 is 471145541.

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

It is a self number, because there is not a number n which added to its sum of digits gives 145541174.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145541177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36385292 + ... + 36385295.

It is an arithmetic number, because the mean of its divisors is an integer number (54577941).

Almost surely, 2^145541174 is an apocalyptic number.

145541174 is a deficient number, since it is larger than the sum of its proper divisors (72770590).

145541174 is an equidigital number, since it uses as much as digits as its factorization.

145541174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72770589.

The product of its digits is 11200, while the sum is 32.

The square root of 145541174 is about 12064.0446782992. The cubic root of 145541174 is about 526.0115632111.

The spelling of 145541174 in words is "one hundred forty-five million, five hundred forty-one thousand, one hundred seventy-four".