1349525911 has 4 divisors (see below), whose sum is σ = 1350789400. Its totient is φ = 1348262424.

The previous prime is 1349525887. The next prime is 1349525917. The reversal of 1349525911 is 1195259431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1195259431 = 67 ⋅17839693.

It is a cyclic number.

It is not a de Polignac number, because 1349525911 - 2¹⁹ = 1349001623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1349525917) 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, 630141 + ... + 632278.

It is an arithmetic number, because the mean of its divisors is an integer number (337697350).

Almost surely, 2^1349525911 is an apocalyptic number.

1349525911 is a deficient number, since it is larger than the sum of its proper divisors (1263489).

1349525911 is a wasteful number, since it uses less digits than its factorization.

1349525911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263488.

The product of its digits is 48600, while the sum is 40.

The square root of 1349525911 is about 36735.8940411146. The cubic root of 1349525911 is about 1105.0800597181.

The spelling of 1349525911 in words is "one billion, three hundred forty-nine million, five hundred twenty-five thousand, nine hundred eleven".