1225692 has 72 divisors (see below), whose sum is σ = 3495856. Its totient is φ = 373248.

The previous prime is 1225691. The next prime is 1225703. The reversal of 1225692 is 2965221.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225691) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12588 + ... + 12684.

2^1225692 is an apocalyptic number.

1225692 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1747928).

1225692 is an abundant number, since it is smaller than the sum of its proper divisors (2270164).

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

1225692 is a wasteful number, since it uses less digits than its factorization.

1225692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 115 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1225692 is about 1107.1097506571. The cubic root of 1225692 is about 107.0188920554.

The spelling of 1225692 in words is "one million, two hundred twenty-five thousand, six hundred ninety-two".