1325669191 has 16 divisors (see below), whose sum is σ = 1655089920. Its totient is φ = 1031546880.

The previous prime is 1325669173. The next prime is 1325669209. The reversal of 1325669191 is 1919665231.

It is an interprime number because it is at equal distance from previous prime (1325669173) and next prime (1325669209).

It is not a de Polignac number, because 1325669191 - 2¹⁵ = 1325636423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325669291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45255 + ... + 68551.

It is an arithmetic number, because the mean of its divisors is an integer number (103443120).

Almost surely, 2^1325669191 is an apocalyptic number.

1325669191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1325669191 is a deficient number, since it is larger than the sum of its proper divisors (329420729).

1325669191 is a wasteful number, since it uses less digits than its factorization.

1325669191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24054.

The product of its digits is 87480, while the sum is 43.

The square root of 1325669191 is about 36409.7403314003. The cubic root of 1325669191 is about 1098.5294926409.

The spelling of 1325669191 in words is "one billion, three hundred twenty-five million, six hundred sixty-nine thousand, one hundred ninety-one".