145254623 has 4 divisors (see below), whose sum is σ = 149940288. Its totient is φ = 140568960.

The previous prime is 145254619. The next prime is 145254653. The reversal of 145254623 is 326452541.

145254623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326452541 = 61 ⋅5351681.

It is a cyclic number.

It is not a de Polignac number, because 145254623 - 2² = 145254619 is a prime.

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 145254623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145254653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2342786 + ... + 2342847.

It is an arithmetic number, because the mean of its divisors is an integer number (37485072).

Almost surely, 2^145254623 is an apocalyptic number.

145254623 is a deficient number, since it is larger than the sum of its proper divisors (4685665).

145254623 is an equidigital number, since it uses as much as digits as its factorization.

145254623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685664.

The product of its digits is 28800, while the sum is 32.

The square root of 145254623 is about 12052.1625860258. The cubic root of 145254623 is about 525.6661210579. Note that the first 3 decimals are identical.

The spelling of 145254623 in words is "one hundred forty-five million, two hundred fifty-four thousand, six hundred twenty-three".