1225920153 has 8 divisors (see below), whose sum is σ = 1672573408. Its totient is φ = 798273504.

The previous prime is 1225920107. The next prime is 1225920169. The reversal of 1225920153 is 3510295221.

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

It is not a de Polignac number, because 1225920153 - 2⁸ = 1225919897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1225920153.

It is not an unprimeable number, because it can be changed into a prime (1225920193) 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, 4751500 + ... + 4751757.

It is an arithmetic number, because the mean of its divisors is an integer number (209071676).

Almost surely, 2^1225920153 is an apocalyptic number.

It is an amenable number.

1225920153 is a deficient number, since it is larger than the sum of its proper divisors (446653255).

1225920153 is an equidigital number, since it uses as much as digits as its factorization.

1225920153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9503303.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1225920153 is about 35013.1425753245. The cubic root of 1225920153 is about 1070.2553188723.

The spelling of 1225920153 in words is "one billion, two hundred twenty-five million, nine hundred twenty thousand, one hundred fifty-three".