1959023 has 4 divisors (see below), whose sum is σ = 2137128. Its totient is φ = 1780920.

The previous prime is 1959019. The next prime is 1959031. The reversal of 1959023 is 3209591.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1959023 - 2² = 1959019 is a prime.

It is a super-2 number, since 2×1959023² = 7675542229058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1959053) 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, 89036 + ... + 89057.

It is an arithmetic number, because the mean of its divisors is an integer number (534282).

2^1959023 is an apocalyptic number.

1959023 is a deficient number, since it is larger than the sum of its proper divisors (178105).

1959023 is a wasteful number, since it uses less digits than its factorization.

1959023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178104.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 1959023 is about 1399.6510279352. The cubic root of 1959023 is about 125.1256975586.

The spelling of 1959023 in words is "one million, nine hundred fifty-nine thousand, twenty-three".