1901123 has 8 divisors (see below), whose sum is σ = 2195040. Its totient is φ = 1612800.

The previous prime is 1901117. The next prime is 1901131. The reversal of 1901123 is 3211091.

It is a happy number.

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

It is not a de Polignac number, because 1901123 - 2⁸ = 1900867 is a prime.

It is a super-2 number, since 2×1901123² = 7228537322258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1901923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638 + ... + 2051.

It is an arithmetic number, because the mean of its divisors is an integer number (274380).

2^1901123 is an apocalyptic number.

1901123 is a deficient number, since it is larger than the sum of its proper divisors (293917).

1901123 is a wasteful number, since it uses less digits than its factorization.

1901123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 1901123 is about 1378.8121699492. The cubic root of 1901123 is about 123.8806300078.

The spelling of 1901123 in words is "one million, nine hundred one thousand, one hundred twenty-three".