1901125 has 16 divisors (see below), whose sum is σ = 2418624. Its totient is φ = 1491600.
The previous prime is 1901117. The next prime is 1901131. The reversal of 1901125 is 5211091.
It is not a de Polignac number, because 1901125 - 23 = 1901117 is a prime.
It is a super-2 number, since 2×19011252 = 7228552531250, which contains 22 as substring.
It is a Duffinian number.
1901125 is a lucky number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8262 + ... + 8488.
It is an arithmetic number, because the mean of its divisors is an integer number (151164).
21901125 is an apocalyptic number.
It is an amenable number.
1901125 is a deficient number, since it is larger than the sum of its proper divisors (517499).
1901125 is an equidigital number, since it uses as much as digits as its factorization.
1901125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 309 (or 299 counting only the distinct ones).
The product of its (nonzero) digits is 90, while the sum is 19.
The square root of 1901125 is about 1378.8128952109. The cubic root of 1901125 is about 123.8806734490.
The spelling of 1901125 in words is "one million, nine hundred one thousand, one hundred twenty-five".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •