145188974 has 8 divisors (see below), whose sum is σ = 248895408. Its totient is φ = 62223840.

The previous prime is 145188971. The next prime is 145188997. The reversal of 145188974 is 479881541.

145188974 is digitally balanced in base 2, 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (145188971) 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, 5185307 + ... + 5185334.

It is an arithmetic number, because the mean of its divisors is an integer number (31111926).

Almost surely, 2^145188974 is an apocalyptic number.

145188974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

145188974 is a deficient number, since it is larger than the sum of its proper divisors (103706434).

145188974 is a wasteful number, since it uses less digits than its factorization.

145188974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10370650.

The product of its digits is 322560, while the sum is 47.

The square root of 145188974 is about 12049.4387421158. The cubic root of 145188974 is about 525.5869161079.

The spelling of 145188974 in words is "one hundred forty-five million, one hundred eighty-eight thousand, nine hundred seventy-four".