145874432 has 80 divisors (see below), whose sum is σ = 324086400. Its totient is φ = 65034240.

The previous prime is 145874411. The next prime is 145874453. The reversal of 145874432 is 234478541.

It is an interprime number because it is at equal distance from previous prime (145874411) and next prime (145874453).

It is a super-2 number, since 2×145874432² = 42558699822645248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332069 + ... + 332507.

It is an arithmetic number, because the mean of its divisors is an integer number (4051080).

Almost surely, 2^145874432 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 145874432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162043200).

145874432 is an abundant number, since it is smaller than the sum of its proper divisors (178211968).

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

145874432 is an equidigital number, since it uses as much as digits as its factorization.

145874432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 511 counting only the distinct ones).

The product of its digits is 107520, while the sum is 38.

The square root of 145874432 is about 12077.8488150829. The cubic root of 145874432 is about 526.4127416286.

The spelling of 145874432 in words is "one hundred forty-five million, eight hundred seventy-four thousand, four hundred thirty-two".