145314505 has 32 divisors (see below), whose sum is σ = 209629440. Its totient is φ = 94590720.

The previous prime is 145314473. The next prime is 145314509. The reversal of 145314505 is 505413541.

It is not a de Polignac number, because 145314505 - 2⁵ = 145314473 is a prime.

It is a super-2 number, since 2×145314505² = 42232610726790050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145314509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60742 + ... + 63088.

It is an arithmetic number, because the mean of its divisors is an integer number (6550920).

Almost surely, 2^145314505 is an apocalyptic number.

It is an amenable number.

145314505 is a deficient number, since it is larger than the sum of its proper divisors (64314935).

145314505 is a wasteful number, since it uses less digits than its factorization.

145314505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2449.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 145314505 is about 12054.6466144802. The cubic root of 145314505 is about 525.7383473626.

The spelling of 145314505 in words is "one hundred forty-five million, three hundred fourteen thousand, five hundred five".