145405073 has 8 divisors (see below), whose sum is σ = 159230016. Its totient is φ = 131681200.

The previous prime is 145405067. The next prime is 145405093. The reversal of 145405073 is 370504541.

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 145405073 - 2⁶ = 145405009 is a prime.

It is a super-2 number, since 2×145405073² = 42285270508270658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145405003) 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, 22238 + ... + 28023.

It is an arithmetic number, because the mean of its divisors is an integer number (19903752).

Almost surely, 2^145405073 is an apocalyptic number.

It is an amenable number.

145405073 is a deficient number, since it is larger than the sum of its proper divisors (13824943).

145405073 is a wasteful number, since it uses less digits than its factorization.

145405073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50535.

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 145405073 is about 12058.4025890663. The cubic root of 145405073 is about 525.8475477070.

The spelling of 145405073 in words is "one hundred forty-five million, four hundred five thousand, seventy-three".