145013561 has 8 divisors (see below), whose sum is σ = 180796224. Its totient is φ = 112997520.

The previous prime is 145013549. The next prime is 145013579. The reversal of 145013561 is 165310541.

145013561 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 145013561 - 2⁶ = 145013497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145013561.

It is not an unprimeable number, because it can be changed into a prime (145013581) 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, 941570 + ... + 941723.

It is an arithmetic number, because the mean of its divisors is an integer number (22599528).

Almost surely, 2^145013561 is an apocalyptic number.

145013561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145013561 is a deficient number, since it is larger than the sum of its proper divisors (35782663).

145013561 is a wasteful number, since it uses less digits than its factorization.

145013561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1883311.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 145013561 is about 12042.1576555034. The cubic root of 145013561 is about 525.3751646480.

The spelling of 145013561 in words is "one hundred forty-five million, thirteen thousand, five hundred sixty-one".