1217633061 has 8 divisors (see below), whose sum is σ = 1630304640. Its totient is φ = 808358432.

The previous prime is 1217633059. The next prime is 1217633101. The reversal of 1217633061 is 1603367121.

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

It is a cyclic number.

It is not a de Polignac number, because 1217633061 - 2¹ = 1217633059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1217633161) 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, 848400 + ... + 849833.

It is an arithmetic number, because the mean of its divisors is an integer number (203788080).

Almost surely, 2^1217633061 is an apocalyptic number.

It is an amenable number.

1217633061 is a deficient number, since it is larger than the sum of its proper divisors (412671579).

1217633061 is a wasteful number, since it uses less digits than its factorization.

1217633061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698475.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 1217633061 is about 34894.5993099219. The cubic root of 1217633061 is about 1067.8382596391.

The spelling of 1217633061 in words is "one billion, two hundred seventeen million, six hundred thirty-three thousand, sixty-one".