1345972 has 12 divisors (see below), whose sum is σ = 2380420. Its totient is φ = 665856.

The previous prime is 1345957. The next prime is 1345973. The reversal of 1345972 is 2795431.

It can be written as a sum of positive squares in 2 ways, for example, as 256036 + 1089936 = 506^2 + 1044^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345973) 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, 1347 + ... + 2122.

2^1345972 is an apocalyptic number.

It is an amenable number.

1345972 is a deficient number, since it is larger than the sum of its proper divisors (1034448).

1345972 is a wasteful number, since it uses less digits than its factorization.

1345972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570 (or 3568 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 1345972 is about 1160.1603337470. The cubic root of 1345972 is about 110.4109148699.

It can be divided in two parts, 13459 and 72, that added together give a palindrome (13531).

The spelling of 1345972 in words is "one million, three hundred forty-five thousand, nine hundred seventy-two".