1217265053 has 8 divisors (see below), whose sum is σ = 1261332480. Its totient is φ = 1173337200.

The previous prime is 1217265019. The next prime is 1217265067. The reversal of 1217265053 is 3505627121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1217265053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217265083) 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, 16973 + ... + 52178.

It is an arithmetic number, because the mean of its divisors is an integer number (157666560).

Almost surely, 2^1217265053 is an apocalyptic number.

It is an amenable number.

1217265053 is a deficient number, since it is larger than the sum of its proper divisors (44067427).

1217265053 is an equidigital number, since it uses as much as digits as its factorization.

1217265053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69787.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 1217265053 is about 34889.3257745116. The cubic root of 1217265053 is about 1067.7306704068.

The spelling of 1217265053 in words is "one billion, two hundred seventeen million, two hundred sixty-five thousand, fifty-three".