977145 has 16 divisors (see below), whose sum is σ = 1684032. Its totient is φ = 480960.

The previous prime is 977107. The next prime is 977147. The reversal of 977145 is 541779.

It is not a de Polignac number, because 977145 - 2¹⁹ = 452857 is a prime.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 977145.

It is not an unprimeable number, because it can be changed into a prime (977147) 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 15 ways as a sum of consecutive naturals, for example, 2311 + ... + 2700.

It is an arithmetic number, because the mean of its divisors is an integer number (105252).

2⁹⁷⁷¹⁴⁵ is an apocalyptic number.

It is an amenable number.

977145 is a deficient number, since it is larger than the sum of its proper divisors (706887).

977145 is a wasteful number, since it uses less digits than its factorization.

977145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5032.

The product of its digits is 8820, while the sum is 33.

The square root of 977145 is about 988.5064491444. The cubic root of 977145 is about 99.2322879310.

The spelling of 977145 in words is "nine hundred seventy-seven thousand, one hundred forty-five".