1352986657 has 4 divisors (see below), whose sum is σ = 1475985456. Its totient is φ = 1229987860.

The previous prime is 1352986651. The next prime is 1352986681. The reversal of 1352986657 is 7566892531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7566892531 = 11 ⋅687899321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1352986657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1352986651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61499383 + ... + 61499404.

It is an arithmetic number, because the mean of its divisors is an integer number (368996364).

Almost surely, 2^1352986657 is an apocalyptic number.

It is an amenable number.

1352986657 is a deficient number, since it is larger than the sum of its proper divisors (122998799).

1352986657 is a wasteful number, since it uses less digits than its factorization.

1352986657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122998798.

The product of its digits is 2721600, while the sum is 52.

The square root of 1352986657 is about 36782.9669412352. The cubic root of 1352986657 is about 1106.0238817660.

The spelling of 1352986657 in words is "one billion, three hundred fifty-two million, nine hundred eighty-six thousand, six hundred fifty-seven".