145363665 has 16 divisors (see below), whose sum is σ = 233630208. Its totient is φ = 77177856.

The previous prime is 145363663. The next prime is 145363679. The reversal of 145363665 is 566363541.

It is a happy number.

It is not a de Polignac number, because 145363665 - 2¹ = 145363663 is a prime.

It is a super-2 number, since 2×145363665² = 42261190204464450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145363663) 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, 18384 + ... + 25073.

It is an arithmetic number, because the mean of its divisors is an integer number (14601888).

Almost surely, 2^145363665 is an apocalyptic number.

145363665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145363665 is a deficient number, since it is larger than the sum of its proper divisors (88266543).

145363665 is a wasteful number, since it uses less digits than its factorization.

145363665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43688.

The product of its digits is 194400, while the sum is 39.

The square root of 145363665 is about 12056.6854898019. The cubic root of 145363665 is about 525.7976265635.

The spelling of 145363665 in words is "one hundred forty-five million, three hundred sixty-three thousand, six hundred sixty-five".