977142 has 16 divisors (see below), whose sum is σ = 1969200. Its totient is φ = 323232.

The previous prime is 977107. The next prime is 977147. The reversal of 977142 is 241779.

It is a plaindrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 977142.

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 7 ways as a sum of consecutive naturals, for example, 348 + ... + 1440.

It is an arithmetic number, because the mean of its divisors is an integer number (123075).

2⁹⁷⁷¹⁴² is an apocalyptic number.

977142 is an abundant number, since it is smaller than the sum of its proper divisors (992058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

977142 is a wasteful number, since it uses less digits than its factorization.

977142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247.

The product of its digits is 3528, while the sum is 30.

The square root of 977142 is about 988.5049317024. The cubic root of 977142 is about 99.2321863776.

The spelling of 977142 in words is "nine hundred seventy-seven thousand, one hundred forty-two".