145607617 has 8 divisors (see below), whose sum is σ = 149964416. Its totient is φ = 141273072.

The previous prime is 145607603. The next prime is 145607653. The reversal of 145607617 is 716706541.

145607617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145607617 - 2⁷ = 145607489 is a prime.

It is a super-3 number, since 3×145607617³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145607677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8218 + ... + 18940.

It is an arithmetic number, because the mean of its divisors is an integer number (18745552).

Almost surely, 2^145607617 is an apocalyptic number.

It is an amenable number.

145607617 is a deficient number, since it is larger than the sum of its proper divisors (4356799).

145607617 is a wasteful number, since it uses less digits than its factorization.

145607617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11127.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 145607617 is about 12066.7981254349. The cubic root of 145607617 is about 526.0915966207.

The spelling of 145607617 in words is "one hundred forty-five million, six hundred seven thousand, six hundred seventeen".