1225415319 has 8 divisors (see below), whose sum is σ = 1635394560. Its totient is φ = 816189816.

The previous prime is 1225415311. The next prime is 1225415357. The reversal of 1225415319 is 9135145221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1225415319 - 2³ = 1225415311 is a prime.

It is a super-2 number, since 2×1225415319² = 3003285408079743522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1225415319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225415311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184629 + ... + 191150.

It is an arithmetic number, because the mean of its divisors is an integer number (204424320).

Almost surely, 2^1225415319 is an apocalyptic number.

1225415319 is a deficient number, since it is larger than the sum of its proper divisors (409979241).

1225415319 is a wasteful number, since it uses less digits than its factorization.

1225415319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376869.

The product of its digits is 10800, while the sum is 33.

The square root of 1225415319 is about 35005.9326257707. The cubic root of 1225415319 is about 1070.1083882981.

The spelling of 1225415319 in words is "one billion, two hundred twenty-five million, four hundred fifteen thousand, three hundred nineteen".