145450030 has 64 divisors (see below), whose sum is σ = 293932800. Its totient is φ = 51377920.

The previous prime is 145450021. The next prime is 145450031. The reversal of 145450030 is 30054541.

It is a super-2 number, since 2×145450030² = 42311422454001800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 145449983 and 145450010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145450031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 812481 + ... + 812659.

It is an arithmetic number, because the mean of its divisors is an integer number (4592700).

Almost surely, 2^145450030 is an apocalyptic number.

145450030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145450030 is an abundant number, since it is smaller than the sum of its proper divisors (148482770).

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

145450030 is a wasteful number, since it uses less digits than its factorization.

145450030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 145450030 is about 12060.2665808016. The cubic root of 145450030 is about 525.9017367659.

The spelling of 145450030 in words is "one hundred forty-five million, four hundred fifty thousand, thirty".