1306972 has 24 divisors (see below), whose sum is σ = 2494800. Its totient is φ = 596736.

The previous prime is 1306961. The next prime is 1306973. The reversal of 1306972 is 2796031.

It is a self number, because there is not a number n which added to its sum of digits gives 1306972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1908 + ... + 2500.

It is an arithmetic number, because the mean of its divisors is an integer number (103950).

2^1306972 is an apocalyptic number.

It is an amenable number.

1306972 is a deficient number, since it is larger than the sum of its proper divisors (1187828).

1306972 is a wasteful number, since it uses less digits than its factorization.

1306972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645 (or 643 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 1306972 is about 1143.2287610098. The cubic root of 1306972 is about 109.3340480157.

It can be divided in two parts, 1306 and 972, that added together give a triangular number (2278 = T₆₇).

The spelling of 1306972 in words is "one million, three hundred six thousand, nine hundred seventy-two".