145345450 has 24 divisors (see below), whose sum is σ = 273607488. Its totient is φ = 57436080.

The previous prime is 145345439. The next prime is 145345457. The reversal of 145345450 is 54543541.

It is a happy number.

145345450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145345450² = 42250599671405000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (145345457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13362 + ... + 21661.

It is an arithmetic number, because the mean of its divisors is an integer number (11400312).

Almost surely, 2^145345450 is an apocalyptic number.

145345450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145345450 is a deficient number, since it is larger than the sum of its proper divisors (128262038).

145345450 is a wasteful number, since it uses less digits than its factorization.

145345450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35118 (or 35113 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 145345450 is about 12055.9300761078. The cubic root of 145345450 is about 525.7756637073.

Adding to 145345450 its reverse (54543541), we get a palindrome (199888991).

The spelling of 145345450 in words is "one hundred forty-five million, three hundred forty-five thousand, four hundred fifty".