1195400641 has 8 divisors (see below), whose sum is σ = 1234938368. Its totient is φ = 1155924000.

The previous prime is 1195400639. The next prime is 1195400681. The reversal of 1195400641 is 1460045911.

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 1195400641 - 2¹ = 1195400639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1195400681) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 26356 + ... + 55546.

It is an arithmetic number, because the mean of its divisors is an integer number (154367296).

It is a Poulet number, since it divides 2^1195400640-1.

Almost surely, 2^1195400641 is an apocalyptic number.

It is an amenable number.

1195400641 is a deficient number, since it is larger than the sum of its proper divisors (39537727).

1195400641 is a wasteful number, since it uses less digits than its factorization.

1195400641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30543.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 1195400641 is about 34574.5663891827. The cubic root of 1195400641 is about 1061.2991786507.

The spelling of 1195400641 in words is "one billion, one hundred ninety-five million, four hundred thousand, six hundred forty-one".