1901255 has 4 divisors (see below), whose sum is σ = 2281512. Its totient is φ = 1521000.

The previous prime is 1901231. The next prime is 1901267. The reversal of 1901255 is 5521091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5521091 = 409 ⋅13499.

It is not a de Polignac number, because 1901255 - 2⁶ = 1901191 is a prime.

It is a super-2 number, since 2×1901255² = 7229541150050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1901255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190121 + ... + 190130.

It is an arithmetic number, because the mean of its divisors is an integer number (570378).

2^1901255 is an apocalyptic number.

1901255 is a deficient number, since it is larger than the sum of its proper divisors (380257).

1901255 is an equidigital number, since it uses as much as digits as its factorization.

1901255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380256.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 1901255 is about 1378.8600364069. The cubic root of 1901255 is about 123.8834970614.

It can be divided in two parts, 190125 and 5, that multiplied together give a square (950625 = 975²).

The spelling of 1901255 in words is "one million, nine hundred one thousand, two hundred fifty-five".