1201695258 has 24 divisors (see below), whose sum is σ = 2411577792. Its totient is φ = 399204984.

The previous prime is 1201695241. The next prime is 1201695263. The reversal of 1201695258 is 8525961021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 807391 + ... + 808877.

It is an arithmetic number, because the mean of its divisors is an integer number (100482408).

Almost surely, 2^1201695258 is an apocalyptic number.

1201695258 is an abundant number, since it is smaller than the sum of its proper divisors (1209882534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201695258 is an equidigital number, since it uses as much as digits as its factorization.

1201695258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226 (or 1859 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 1201695258 is about 34665.4764571324. The cubic root of 1201695258 is about 1063.1587449548.

The spelling of 1201695258 in words is "one billion, two hundred one million, six hundred ninety-five thousand, two hundred fifty-eight".