1351972 has 12 divisors (see below), whose sum is σ = 2442496. Its totient is φ = 654120.

The previous prime is 1351967. The next prime is 1351979. The reversal of 1351972 is 2791531.

It is a self number, because there is not a number n which added to its sum of digits gives 1351972.

It is not an unprimeable number, because it can be changed into a prime (1351979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5328 + ... + 5575.

2^1351972 is an apocalyptic number.

It is an amenable number.

1351972 is a deficient number, since it is larger than the sum of its proper divisors (1090524).

1351972 is a wasteful number, since it uses less digits than its factorization.

1351972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10938 (or 10936 counting only the distinct ones).

The product of its digits is 1890, while the sum is 28.

The square root of 1351972 is about 1162.7433078715. The cubic root of 1351972 is about 110.5747329266.

The spelling of 1351972 in words is "one million, three hundred fifty-one thousand, nine hundred seventy-two".