145329552 has 60 divisors (see below), whose sum is σ = 421795920. Its totient is φ = 48441888.

The previous prime is 145329539. The next prime is 145329553. The reversal of 145329552 is 255923541.

It is a happy number.

It is a super-2 number, since 2×145329552² = 42241357369041408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (145329553) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 14802 + ... + 22577.

It is an arithmetic number, because the mean of its divisors is an integer number (7029932).

Almost surely, 2^145329552 is an apocalyptic number.

145329552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145329552 is an abundant number, since it is smaller than the sum of its proper divisors (276466368).

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

145329552 is an equidigital number, since it uses as much as digits as its factorization.

145329552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37402 (or 37384 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 145329552 is about 12055.2707145049. The cubic root of 145329552 is about 525.7564930893.

The spelling of 145329552 in words is "one hundred forty-five million, three hundred twenty-nine thousand, five hundred fifty-two".