1930123 has 4 divisors (see below), whose sum is σ = 2078608. Its totient is φ = 1781640.

The previous prime is 1930099. The next prime is 1930133. The reversal of 1930123 is 3210391.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3210391 = 31 ⋅103561.

It is a cyclic number.

It is not a de Polignac number, because 1930123 - 2⁹ = 1929611 is a prime.

It is an Ulam number.

It is a Duffinian number.

1930123 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1930123.

It is not an unprimeable number, because it can be changed into a prime (1930133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74223 + ... + 74248.

It is an arithmetic number, because the mean of its divisors is an integer number (519652).

2^1930123 is an apocalyptic number.

1930123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1930123 is a deficient number, since it is larger than the sum of its proper divisors (148485).

1930123 is a wasteful number, since it uses less digits than its factorization.

1930123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148484.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 1930123 is about 1389.2886669084. The cubic root of 1930123 is about 124.5073515978.

The spelling of 1930123 in words is "one million, nine hundred thirty thousand, one hundred twenty-three".