1198152251 has 8 divisors (see below), whose sum is σ = 1206659904. Its totient is φ = 1189656000.

The previous prime is 1198152229. The next prime is 1198152253. The reversal of 1198152251 is 1522518911.

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 1198152251 - 2⁶ = 1198152187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1198152253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397751 + ... + 400751.

It is an arithmetic number, because the mean of its divisors is an integer number (150832488).

Almost surely, 2^1198152251 is an apocalyptic number.

1198152251 is a deficient number, since it is larger than the sum of its proper divisors (8507653).

1198152251 is a wasteful number, since it uses less digits than its factorization.

1198152251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5701.

The product of its digits is 7200, while the sum is 35.

The square root of 1198152251 is about 34614.3359173623. The cubic root of 1198152251 is about 1062.1128650220.

The spelling of 1198152251 in words is "one billion, one hundred ninety-eight million, one hundred fifty-two thousand, two hundred fifty-one".