145415431540015 has 32 divisors (see below), whose sum is σ = 215623053789696. Its totient is φ = 91676468304000.

The previous prime is 145415431540003. The next prime is 145415431540019. The reversal of 145415431540015 is 510045134514541.

It is not a de Polignac number, because 145415431540015 - 2¹⁹ = 145415431015727 is a prime.

It is a super-2 number, since 2×145415431540015² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145415431540019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 636527937 + ... + 636756346.

It is an arithmetic number, because the mean of its divisors is an integer number (6738220430928).

Almost surely, 2^{145415431540015} is an apocalyptic number.

145415431540015 is a deficient number, since it is larger than the sum of its proper divisors (70207622249681).

145415431540015 is a wasteful number, since it uses less digits than its factorization.

145415431540015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273284559.

The product of its (nonzero) digits is 480000, while the sum is 43.

The spelling of 145415431540015 in words is "one hundred forty-five trillion, four hundred fifteen billion, four hundred thirty-one million, five hundred forty thousand, fifteen".