145506416 has 40 divisors (see below), whose sum is σ = 309944448. Its totient is φ = 65624000.

The previous prime is 145506353. The next prime is 145506433. The reversal of 145506416 is 614605541.

It is a congruent number.

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, 19901 + ... + 26211.

Almost surely, 2^145506416 is an apocalyptic number.

145506416 is a gapful number since it is divisible by the number (16) 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 145506416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154972224).

145506416 is an abundant number, since it is smaller than the sum of its proper divisors (164438032).

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

145506416 is a wasteful number, since it uses less digits than its factorization.

145506416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6461 (or 6455 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 145506416 is about 12062.6040306395. The cubic root of 145506416 is about 525.9696860226.

The spelling of 145506416 in words is "one hundred forty-five million, five hundred six thousand, four hundred sixteen".