145403580 has 216 divisors, whose sum is σ = 503486928. Its totient is φ = 31256064.

The previous prime is 145403579. The next prime is 145403603. The reversal of 145403580 is 85304541.

It is a super-2 number, since 2×145403580² = 42284402153632800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1061272 + ... + 1061408.

It is an arithmetic number, because the mean of its divisors is an integer number (2330958).

Almost surely, 2^145403580 is an apocalyptic number.

145403580 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 145403580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251743464).

145403580 is an abundant number, since it is smaller than the sum of its proper divisors (358083348).

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

145403580 is a wasteful number, since it uses less digits than its factorization.

145403580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 145403580 is about 12058.3406818683. The cubic root of 145403580 is about 525.8457479232.

The spelling of 145403580 in words is "one hundred forty-five million, four hundred three thousand, five hundred eighty".