145332330 has 128 divisors (see below), whose sum is σ = 431585280. Its totient is φ = 30792960.

The previous prime is 145332329. The next prime is 145332347. The reversal of 145332330 is 33233541.

145332330 = T₁₂₀ + T₁₂₁ + ... + T₉₅₅.

It is a happy number.

It is a super-2 number, since 2×145332330² = 42242972286457800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145332330.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 80619 + ... + 82401.

It is an arithmetic number, because the mean of its divisors is an integer number (3371760).

Almost surely, 2^145332330 is an apocalyptic number.

145332330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145332330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215792640).

145332330 is an abundant number, since it is smaller than the sum of its proper divisors (286252950).

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

145332330 is a wasteful number, since it uses less digits than its factorization.

145332330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836.

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 145332330 is about 12055.3859332665. The cubic root of 145332330 is about 525.7598430440.

Adding to 145332330 its reverse (33233541), we get a palindrome (178565871).

The spelling of 145332330 in words is "one hundred forty-five million, three hundred thirty-two thousand, three hundred thirty".