145345501 has 8 divisors (see below), whose sum is σ = 166711040. Its totient is φ = 124130448.

The previous prime is 145345481. The next prime is 145345507. The reversal of 145345501 is 105543541.

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 145345501 - 2⁵ = 145345469 is a prime.

It is a super-2 number, since 2×145345501² = 42250629321882002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145345501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145345507) 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, 35541 + ... + 39418.

It is an arithmetic number, because the mean of its divisors is an integer number (20838880).

Almost surely, 2^145345501 is an apocalyptic number.

It is an amenable number.

145345501 is a deficient number, since it is larger than the sum of its proper divisors (21365539).

145345501 is an equidigital number, since it uses as much as digits as its factorization.

145345501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75243.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 145345501 is about 12055.9321912493. The cubic root of 145345501 is about 525.7757252034.

The spelling of 145345501 in words is "one hundred forty-five million, three hundred forty-five thousand, five hundred one".