145161378 has 24 divisors (see below), whose sum is σ = 321832368. Its totient is φ = 47261592.

The previous prime is 145161347. The next prime is 145161391. The reversal of 145161378 is 873161541.

145161378 is a `hidden beast` number, since 1 + 4 + 516 + 137 + 8 = 666.

145161378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93000 + ... + 94547.

It is an arithmetic number, because the mean of its divisors is an integer number (13409682).

Almost surely, 2^145161378 is an apocalyptic number.

145161378 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

145161378 is an abundant number, since it is smaller than the sum of its proper divisors (176670990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145161378 is a wasteful number, since it uses less digits than its factorization.

145161378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187598 (or 187595 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 145161378 is about 12048.2935721205. The cubic root of 145161378 is about 525.5536146453.

The spelling of 145161378 in words is "one hundred forty-five million, one hundred sixty-one thousand, three hundred seventy-eight".