1850361 has 4 divisors (see below), whose sum is σ = 2467152. Its totient is φ = 1233572.

The previous prime is 1850357. The next prime is 1850369. The reversal of 1850361 is 1630581.

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.

It is a cyclic number.

It is not a de Polignac number, because 1850361 - 2² = 1850357 is a prime.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

1850361 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1850369) 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, 308391 + ... + 308396.

It is an arithmetic number, because the mean of its divisors is an integer number (616788).

2^1850361 is an apocalyptic number.

It is an amenable number.

1850361 is a deficient number, since it is larger than the sum of its proper divisors (616791).

1850361 is an equidigital number, since it uses as much as digits as its factorization.

1850361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616790.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1850361 is about 1360.2797506396. The cubic root of 1850361 is about 122.7680870363.

It can be divided in two parts, 1850 and 361, that added together give a triangular number (2211 = T₆₆).

The spelling of 1850361 in words is "one million, eight hundred fifty thousand, three hundred sixty-one".