145620273 has 8 divisors (see below), whose sum is σ = 195016608. Its totient is φ = 96652064.

The previous prime is 145620269. The next prime is 145620301. The reversal of 145620273 is 372026541.

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 145620273 - 2² = 145620269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145620273.

It is not an unprimeable number, because it can be changed into a prime (145620073) 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, 106236 + ... + 107597.

It is an arithmetic number, because the mean of its divisors is an integer number (24377076).

Almost surely, 2^145620273 is an apocalyptic number.

It is an amenable number.

145620273 is a deficient number, since it is larger than the sum of its proper divisors (49396335).

145620273 is a wasteful number, since it uses less digits than its factorization.

145620273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214063.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 145620273 is about 12067.3225282164. The cubic root of 145620273 is about 526.1068385485.

The spelling of 145620273 in words is "one hundred forty-five million, six hundred twenty thousand, two hundred seventy-three".