1242929225 has 6 divisors (see below), whose sum is σ = 1541232270. Its totient is φ = 994343360.

The previous prime is 1242929203. The next prime is 1242929231. The reversal of 1242929225 is 5229292421.

1242929225 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 331130809 + 911798416 = 18197^2 + 30196^2 .

It is not a de Polignac number, because 1242929225 - 2⁶ = 1242929161 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24858560 + ... + 24858609.

It is an arithmetic number, because the mean of its divisors is an integer number (256872045).

Almost surely, 2^1242929225 is an apocalyptic number.

It is an amenable number.

1242929225 is a deficient number, since it is larger than the sum of its proper divisors (298303045).

1242929225 is an equidigital number, since it uses as much as digits as its factorization.

1242929225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49717179 (or 49717174 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 1242929225 is about 35255.2013892986. The cubic root of 1242929225 is about 1075.1823667534.

The spelling of 1242929225 in words is "one billion, two hundred forty-two million, nine hundred twenty-nine thousand, two hundred twenty-five".