145442330 has 16 divisors (see below), whose sum is σ = 285596064. Its totient is φ = 52888080.

The previous prime is 145442329. The next prime is 145442347. The reversal of 145442330 is 33244541.

It is a self number, because there is not a number n which added to its sum of digits gives 145442330.

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, 660992 + ... + 661211.

It is an arithmetic number, because the mean of its divisors is an integer number (17849754).

Almost surely, 2^145442330 is an apocalyptic number.

145442330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145442330 is a deficient number, since it is larger than the sum of its proper divisors (140153734).

145442330 is a wasteful number, since it uses less digits than its factorization.

145442330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322221.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 145442330 is about 12059.9473464854. The cubic root of 145442330 is about 525.8924563396.

Adding to 145442330 its reverse (33244541), we get a palindrome (178686871).

The spelling of 145442330 in words is "one hundred forty-five million, four hundred forty-two thousand, three hundred thirty".