1901379 has 4 divisors (see below), whose sum is σ = 2535176. Its totient is φ = 1267584.

The previous prime is 1901377. The next prime is 1901407. The reversal of 1901379 is 9731091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9731091 = 3 ⋅3243697.

It is not a de Polignac number, because 1901379 - 2¹ = 1901377 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1901371) 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, 316894 + ... + 316899.

It is an arithmetic number, because the mean of its divisors is an integer number (633794).

2^1901379 is an apocalyptic number.

1901379 is a deficient number, since it is larger than the sum of its proper divisors (633797).

1901379 is an equidigital number, since it uses as much as digits as its factorization.

1901379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633796.

The product of its (nonzero) digits is 1701, while the sum is 30.

The square root of 1901379 is about 1378.9050003535. The cubic root of 1901379 is about 123.8861902333.

The spelling of 1901379 in words is "one million, nine hundred one thousand, three hundred seventy-nine".