1352659945 has 64 divisors (see below), whose sum is σ = 2056320000. Its totient is φ = 853804224.

The previous prime is 1352659943. The next prime is 1352659981. The reversal of 1352659945 is 5499562531.

It is not a de Polignac number, because 1352659945 - 2¹ = 1352659943 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (1352659943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3767676 + ... + 3768034.

It is an arithmetic number, because the mean of its divisors is an integer number (32130000).

Almost surely, 2^1352659945 is an apocalyptic number.

It is an amenable number.

1352659945 is a deficient number, since it is larger than the sum of its proper divisors (703660055).

1352659945 is an frugal number, since it uses more digits than its factorization.

1352659945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424 (or 384 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 49.

The square root of 1352659945 is about 36778.5255957876. The cubic root of 1352659945 is about 1105.9348490170.

The spelling of 1352659945 in words is "one billion, three hundred fifty-two million, six hundred fifty-nine thousand, nine hundred forty-five".