1959901 has 4 divisors (see below), whose sum is σ = 1964032. Its totient is φ = 1955772.

The previous prime is 1959889. The next prime is 1959941. The reversal of 1959901 is 1099591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1099591 = 53 ⋅20747.

It is a cyclic number.

It is not a de Polignac number, because 1959901 - 2⁷ = 1959773 is a prime.

It is a Duffinian number.

1959901 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1959941) 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, 1245 + ... + 2338.

It is an arithmetic number, because the mean of its divisors is an integer number (491008).

2^1959901 is an apocalyptic number.

It is an amenable number.

1959901 is a deficient number, since it is larger than the sum of its proper divisors (4131).

1959901 is an equidigital number, since it uses as much as digits as its factorization.

1959901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4130.

The product of its (nonzero) digits is 3645, while the sum is 34.

The square root of 1959901 is about 1399.9646424107. The cubic root of 1959901 is about 125.1443878197.

The spelling of 1959901 in words is "one million, nine hundred fifty-nine thousand, nine hundred one".