1197928061001 has 63 divisors (see below), whose sum is σ = 2089667309373. Its totient is φ = 684412114680.

The previous prime is 1197928060969. The next prime is 1197928061021. The reversal of 1197928061001 is 1001608297911.

It is a happy number.

The square root of 1197928061001 is 1094499.

It is a perfect power (a square), and thus also a powerful number.

1197928061001 is a `hidden beast` number, since 1 + 1 + 9 + 7 + 9 + 28 + 0 + 610 + 0 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (63).

It is not a de Polignac number, because 1197928061001 - 2⁵ = 1197928060969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1197928061021) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 206857416 + ... + 206863206.

It is an arithmetic number, because the mean of its divisors is an integer number (33169322371).

Almost surely, 2^{1197928061001} is an apocalyptic number.

1197928061001 is the 1094499-th square number.

1197928061001 is the 547250-th centered octagonal number.

It is an amenable number.

1197928061001 is a deficient number, since it is larger than the sum of its proper divisors (891739248372).

1197928061001 is an frugal number, since it uses more digits than its factorization.

1197928061001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11614 (or 5801 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 45.

The spelling of 1197928061001 in words is "one trillion, one hundred ninety-seven billion, nine hundred twenty-eight million, sixty-one thousand, one".