145354730 has 8 divisors (see below), whose sum is σ = 261638532. Its totient is φ = 58141888.

The previous prime is 145354723. The next prime is 145354747. The reversal of 145354730 is 37453541.

It can be written as a sum of positive squares in 2 ways, for example, as 127622209 + 17732521 = 11297^2 + 4211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×145354730² = 42255995066745800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7267727 + ... + 7267746.

Almost surely, 2^145354730 is an apocalyptic number.

145354730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145354730 is a deficient number, since it is larger than the sum of its proper divisors (116283802).

145354730 is a wasteful number, since it uses less digits than its factorization.

145354730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14535480.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 145354730 is about 12056.3149428007. The cubic root of 145354730 is about 525.7868533577.

The spelling of 145354730 in words is "one hundred forty-five million, three hundred fifty-four thousand, seven hundred thirty".