1623454145 has 8 divisors (see below), whose sum is σ = 2050679040. Its totient is φ = 1230407280.

The previous prime is 1623454141. The next prime is 1623454169. The reversal of 1623454145 is 5414543261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1623454145 - 2² = 1623454141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1623454141) 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, 8544401 + ... + 8544590.

It is an arithmetic number, because the mean of its divisors is an integer number (256334880).

Almost surely, 2^1623454145 is an apocalyptic number.

It is an amenable number.

1623454145 is a deficient number, since it is larger than the sum of its proper divisors (427224895).

1623454145 is a wasteful number, since it uses less digits than its factorization.

1623454145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17089015.

The product of its digits is 57600, while the sum is 35.

The square root of 1623454145 is about 40292.1102078310. The cubic root of 1623454145 is about 1175.2944232768.

The spelling of 1623454145 in words is "one billion, six hundred twenty-three million, four hundred fifty-four thousand, one hundred forty-five".