145399176 has 96 divisors (see below), whose sum is σ = 437848320. Its totient is φ = 43286400.

The previous prime is 145399171. The next prime is 145399201. The reversal of 145399176 is 671993541.

It is a super-2 number, since 2×145399176² = 42281840762957952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145399171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26511 + ... + 31521.

It is an arithmetic number, because the mean of its divisors is an integer number (4560920).

Almost surely, 2^145399176 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145399176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218924160).

145399176 is an abundant number, since it is smaller than the sum of its proper divisors (292449144).

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

145399176 is a wasteful number, since it uses less digits than its factorization.

145399176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5067 (or 5060 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 145399176 is about 12058.1580682955. The cubic root of 145399176 is about 525.8404389112.

The spelling of 145399176 in words is "one hundred forty-five million, three hundred ninety-nine thousand, one hundred seventy-six".