1225431602 has 8 divisors (see below), whose sum is σ = 1838297136. Its totient is φ = 612665892.

The previous prime is 1225431589. The next prime is 1225431617. The reversal of 1225431602 is 2061345221.

It is a happy number.

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

It is a super-2 number, since 2×1225431602² = 3003365222360572808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29513 + ... + 57635.

It is an arithmetic number, because the mean of its divisors is an integer number (229787142).

Almost surely, 2^1225431602 is an apocalyptic number.

1225431602 is a deficient number, since it is larger than the sum of its proper divisors (612865534).

1225431602 is a wasteful number, since it uses less digits than its factorization.

1225431602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49912.

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

The square root of 1225431602 is about 35006.1651998616. The cubic root of 1225431602 is about 1070.1131280511.

Adding to 1225431602 its reverse (2061345221), we get a palindrome (3286776823).

The spelling of 1225431602 in words is "one billion, two hundred twenty-five million, four hundred thirty-one thousand, six hundred two".