1623497145 has 8 divisors (see below), whose sum is σ = 2597595456. Its totient is φ = 865865136.

The previous prime is 1623497119. The next prime is 1623497177. The reversal of 1623497145 is 5417943261.

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

It is not a de Polignac number, because 1623497145 - 2⁶ = 1623497081 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1623497097 and 1623497106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54116557 + ... + 54116586.

It is an arithmetic number, because the mean of its divisors is an integer number (324699432).

Almost surely, 2^1623497145 is an apocalyptic number.

1623497145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1623497145 is a deficient number, since it is larger than the sum of its proper divisors (974098311).

1623497145 is a wasteful number, since it uses less digits than its factorization.

1623497145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108233151.

The product of its digits is 181440, while the sum is 42.

The square root of 1623497145 is about 40292.6438075240. The cubic root of 1623497145 is about 1175.3047997559.

The spelling of 1623497145 in words is "one billion, six hundred twenty-three million, four hundred ninety-seven thousand, one hundred forty-five".