1957142 has 16 divisors (see below), whose sum is σ = 3391632. Its totient is φ = 837120.

The previous prime is 1957129. The next prime is 1957147. The reversal of 1957142 is 2417591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1957147) 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, 2243 + ... + 2990.

It is an arithmetic number, because the mean of its divisors is an integer number (211977).

2^1957142 is an apocalyptic number.

1957142 is a deficient number, since it is larger than the sum of its proper divisors (1434490).

1957142 is a wasteful number, since it uses less digits than its factorization.

1957142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263.

The product of its digits is 2520, while the sum is 29.

The square root of 1957142 is about 1398.9789133507. The cubic root of 1957142 is about 125.0856373166.

It can be divided in two parts, 195 and 7142, that added together give a palindrome (7337).

The spelling of 1957142 in words is "one million, nine hundred fifty-seven thousand, one hundred forty-two".