145374720 has 160 divisors (see below), whose sum is σ = 485540352. Its totient is φ = 37036032.

The previous prime is 145374683. The next prime is 145374727. The reversal of 145374720 is 27473541.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×145374720² = 42267618430156800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145374727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176229 + ... + 177051.

Almost surely, 2^145374720 is an apocalyptic number.

145374720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145374720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242770176).

145374720 is an abundant number, since it is smaller than the sum of its proper divisors (340165632).

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

145374720 is an equidigital number, since it uses as much as digits as its factorization.

145374720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872 (or 856 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 145374720 is about 12057.1439404197. The cubic root of 145374720 is about 525.8109553080.

The spelling of 145374720 in words is "one hundred forty-five million, three hundred seventy-four thousand, seven hundred twenty".