1345534637 has 8 divisors (see below), whose sum is σ = 1382713752. Its totient is φ = 1308398400.

The previous prime is 1345534621. The next prime is 1345534639. The reversal of 1345534637 is 7364355431.

It can be written as a sum of positive squares in 4 ways, for example, as 16859236 + 1328675401 = 4106^2 + 36451^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1345534637 - 2⁴ = 1345534621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1345534594 and 1345534603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345534639) 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, 59087 + ... + 78627.

It is an arithmetic number, because the mean of its divisors is an integer number (172839219).

Almost surely, 2^1345534637 is an apocalyptic number.

It is an amenable number.

1345534637 is a deficient number, since it is larger than the sum of its proper divisors (37179115).

1345534637 is a wasteful number, since it uses less digits than its factorization.

1345534637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21439.

The product of its digits is 453600, while the sum is 41.

The square root of 1345534637 is about 36681.5299162944. The cubic root of 1345534637 is about 1103.9895452193.

The spelling of 1345534637 in words is "one billion, three hundred forty-five million, five hundred thirty-four thousand, six hundred thirty-seven".