145320514 has 4 divisors (see below), whose sum is σ = 217980774. Its totient is φ = 72660256.

The previous prime is 145320503. The next prime is 145320547. The reversal of 145320514 is 415023541.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 73359225 + 71961289 = 8565^2 + 8483^2 .

It is a super-2 number, since 2×145320514² = 42236103578448392, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 36330127 + ... + 36330130.

Almost surely, 2^145320514 is an apocalyptic number.

145320514 is a deficient number, since it is larger than the sum of its proper divisors (72660260).

145320514 is an equidigital number, since it uses as much as digits as its factorization.

145320514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72660259.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 145320514 is about 12054.8958518935. The cubic root of 145320514 is about 525.7455939854.

The spelling of 145320514 in words is "one hundred forty-five million, three hundred twenty thousand, five hundred fourteen".