145178914 has 4 divisors (see below), whose sum is σ = 217768374. Its totient is φ = 72589456.

The previous prime is 145178821. The next prime is 145178923. The reversal of 145178914 is 419871541.

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

It can be written as a sum of positive squares in only one way, i.e., 81450625 + 63728289 = 9025^2 + 7983^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36294727 + ... + 36294730.

Almost surely, 2^145178914 is an apocalyptic number.

145178914 is a deficient number, since it is larger than the sum of its proper divisors (72589460).

145178914 is an equidigital number, since it uses as much as digits as its factorization.

145178914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72589459.

The product of its digits is 40320, while the sum is 40.

The square root of 145178914 is about 12049.0212880549. The cubic root of 145178914 is about 525.5747766955.

The spelling of 145178914 in words is "one hundred forty-five million, one hundred seventy-eight thousand, nine hundred fourteen".