145371144 has 32 divisors (see below), whose sum is σ = 363723840. Its totient is φ = 48417600.

The previous prime is 145371143. The next prime is 145371179. The reversal of 145371144 is 441173541.

It is a super-2 number, since 2×145371144² = 42265539015737472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145371143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54154 + ... + 56774.

It is an arithmetic number, because the mean of its divisors is an integer number (11366370).

Almost surely, 2^145371144 is an apocalyptic number.

It is an amenable number.

145371144 is an abundant number, since it is smaller than the sum of its proper divisors (218352696).

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

145371144 is a wasteful number, since it uses less digits than its factorization.

145371144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4941 (or 4937 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 145371144 is about 12056.9956456822. The cubic root of 145371144 is about 525.8066438857.

The spelling of 145371144 in words is "one hundred forty-five million, three hundred seventy-one thousand, one hundred forty-four".