1198153131 has 32 divisors (see below), whose sum is σ = 1887436800. Its totient is φ = 661595040.

The previous prime is 1198153111. The next prime is 1198153133. The reversal of 1198153131 is 1313518911.

It is a happy number.

It is not a de Polignac number, because 1198153131 - 2¹¹ = 1198151083 is a prime.

It is a super-2 number, since 2×1198153131² = 2871141850650206322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1198153092 and 1198153101.

It is not an unprimeable number, because it can be changed into a prime (1198153133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 831910 + ... + 833348.

It is an arithmetic number, because the mean of its divisors is an integer number (58982400).

Almost surely, 2^1198153131 is an apocalyptic number.

1198153131 is a deficient number, since it is larger than the sum of its proper divisors (689283669).

1198153131 is a wasteful number, since it uses less digits than its factorization.

1198153131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2759.

The product of its digits is 3240, while the sum is 33.

The square root of 1198153131 is about 34614.3486288562. The cubic root of 1198153131 is about 1062.1131250499.

The spelling of 1198153131 in words is "one billion, one hundred ninety-eight million, one hundred fifty-three thousand, one hundred thirty-one".