1325121434 has 32 divisors (see below), whose sum is σ = 2449802880. Its totient is φ = 523490112.

The previous prime is 1325121433. The next prime is 1325121449. The reversal of 1325121434 is 4341215231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1325121433) 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, 135977 + ... + 145395.

It is an arithmetic number, because the mean of its divisors is an integer number (76556340).

Almost surely, 2^1325121434 is an apocalyptic number.

1325121434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1325121434 is a deficient number, since it is larger than the sum of its proper divisors (1124681446).

1325121434 is a wasteful number, since it uses less digits than its factorization.

1325121434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10214.

The product of its digits is 2880, while the sum is 26.

The square root of 1325121434 is about 36402.2174324587. The cubic root of 1325121434 is about 1098.3781702952.

Adding to 1325121434 its reverse (4341215231), we get a palindrome (5666336665).

The spelling of 1325121434 in words is "one billion, three hundred twenty-five million, one hundred twenty-one thousand, four hundred thirty-four".