145133715 has 16 divisors (see below), whose sum is σ = 232682400. Its totient is φ = 77248512.

The previous prime is 145133711. The next prime is 145133731. The reversal of 145133715 is 517331541.

It is not a de Polignac number, because 145133715 - 2² = 145133711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145133711) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 1870 + ... + 17139.

It is an arithmetic number, because the mean of its divisors is an integer number (14542650).

Almost surely, 2^145133715 is an apocalyptic number.

145133715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145133715 is a deficient number, since it is larger than the sum of its proper divisors (87548685).

145133715 is a wasteful number, since it uses less digits than its factorization.

145133715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19526.

The product of its digits is 6300, while the sum is 30.

The square root of 145133715 is about 12047.1455125270. The cubic root of 145133715 is about 525.5202280943.

The spelling of 145133715 in words is "one hundred forty-five million, one hundred thirty-three thousand, seven hundred fifteen".