1231764 has 12 divisors (see below), whose sum is σ = 2874144. Its totient is φ = 410584.

The previous prime is 1231757. The next prime is 1231771. The reversal of 1231764 is 4671321.

It is an interprime number because it is at equal distance from previous prime (1231757) and next prime (1231771).

It is a tau number, because it is divible by the number of its divisors (12).

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, 51312 + ... + 51335.

It is an arithmetic number, because the mean of its divisors is an integer number (239512).

2^1231764 is an apocalyptic number.

It is an amenable number.

1231764 is an abundant number, since it is smaller than the sum of its proper divisors (1642380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231764 is a wasteful number, since it uses less digits than its factorization.

1231764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102654 (or 102652 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 1231764 is about 1109.8486383287. The cubic root of 1231764 is about 107.1953226221.

The spelling of 1231764 in words is "one million, two hundred thirty-one thousand, seven hundred sixty-four".