1201916 has 12 divisors (see below), whose sum is σ = 2111088. Its totient is φ = 598752.

The previous prime is 1201909. The next prime is 1201919. The reversal of 1201916 is 6191021.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201919) 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, 1640 + ... + 2256.

It is an arithmetic number, because the mean of its divisors is an integer number (175924).

2^1201916 is an apocalyptic number.

It is an amenable number.

1201916 is a deficient number, since it is larger than the sum of its proper divisors (909172).

1201916 is a wasteful number, since it uses less digits than its factorization.

1201916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1201916 is about 1096.3192965555. The cubic root of 1201916 is about 106.3223838945.

Adding to 1201916 its reverse (6191021), we get a palindrome (7392937).

The spelling of 1201916 in words is "one million, two hundred one thousand, nine hundred sixteen".