145414320 has 40 divisors (see below), whose sum is σ = 450785136. Its totient is φ = 38777088.

The previous prime is 145414309. The next prime is 145414333. The reversal of 145414320 is 23414541.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×145414320² = 42290648922124800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302707 + ... + 303186.

Almost surely, 2^145414320 is an apocalyptic number.

145414320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145414320 is an abundant number, since it is smaller than the sum of its proper divisors (305370816).

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

145414320 is a wasteful number, since it uses less digits than its factorization.

145414320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605909 (or 605903 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 145414320 is about 12058.7860085499. The cubic root of 145414320 is about 525.8586945194.

Adding to 145414320 its reverse (23414541), we get a palindrome (168828861).

The spelling of 145414320 in words is "one hundred forty-five million, four hundred fourteen thousand, three hundred twenty".