1225151313 has 16 divisors (see below), whose sum is σ = 1729168320. Its totient is φ = 770261184.

The previous prime is 1225151309. The next prime is 1225151353. The reversal of 1225151313 is 3131515221.

It is not a de Polignac number, because 1225151313 - 2² = 1225151309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1225151353) 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, 160006 + ... + 167487.

It is an arithmetic number, because the mean of its divisors is an integer number (108073020).

Almost surely, 2^1225151313 is an apocalyptic number.

It is an amenable number.

1225151313 is a deficient number, since it is larger than the sum of its proper divisors (504017007).

1225151313 is a wasteful number, since it uses less digits than its factorization.

1225151313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327568.

The product of its digits is 900, while the sum is 24.

The square root of 1225151313 is about 35002.1615475387. The cubic root of 1225151313 is about 1070.0315339936.

Adding to 1225151313 its reverse (3131515221), we get a palindrome (4356666534).

The spelling of 1225151313 in words is "one billion, two hundred twenty-five million, one hundred fifty-one thousand, three hundred thirteen".