145351345 has 4 divisors (see below), whose sum is σ = 174421620. Its totient is φ = 116281072.

The previous prime is 145351337. The next prime is 145351351. The reversal of 145351345 is 543153541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543153541 = 7 ⋅77593363.

It can be written as a sum of positive squares in 2 ways, for example, as 103205281 + 42146064 = 10159^2 + 6492^2 .

It is a cyclic number.

It is not a de Polignac number, because 145351345 - 2³ = 145351337 is a prime.

It is a super-2 number, since 2×145351345² = 42254026986618050, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 14535130 + ... + 14535139.

It is an arithmetic number, because the mean of its divisors is an integer number (43605405).

Almost surely, 2^145351345 is an apocalyptic number.

It is an amenable number.

145351345 is a deficient number, since it is larger than the sum of its proper divisors (29070275).

145351345 is an equidigital number, since it uses as much as digits as its factorization.

145351345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29070274.

The product of its digits is 18000, while the sum is 31.

The square root of 145351345 is about 12056.1745591211. The cubic root of 145351345 is about 525.7827718432.

The spelling of 145351345 in words is "one hundred forty-five million, three hundred fifty-one thousand, three hundred forty-five".