145117023465 has 16 divisors (see below), whose sum is σ = 232398920448. Its totient is φ = 77325184896.

The previous prime is 145117023437. The next prime is 145117023509. The reversal of 145117023465 is 564320711541.

It is not a de Polignac number, because 145117023465 - 2³² = 140822056169 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 4393057 + ... + 4425966.

It is an arithmetic number, because the mean of its divisors is an integer number (14524932528).

Almost surely, 2^145117023465 is an apocalyptic number.

145117023465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145117023465 is a deficient number, since it is larger than the sum of its proper divisors (87281896983).

145117023465 is a wasteful number, since it uses less digits than its factorization.

145117023465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8820128.

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 145117023465 in words is "one hundred forty-five billion, one hundred seventeen million, twenty-three thousand, four hundred sixty-five".