1975142 has 8 divisors (see below), whose sum is σ = 3190656. Its totient is φ = 911592.

The previous prime is 1975133. The next prime is 1975147. The reversal of 1975142 is 2415791.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1975147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37958 + ... + 38009.

It is an arithmetic number, because the mean of its divisors is an integer number (398832).

2^1975142 is an apocalyptic number.

1975142 is a deficient number, since it is larger than the sum of its proper divisors (1215514).

1975142 is a wasteful number, since it uses less digits than its factorization.

1975142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75982.

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

The square root of 1975142 is about 1405.3974526802. The cubic root of 1975142 is about 125.4679420559.

The spelling of 1975142 in words is "one million, nine hundred seventy-five thousand, one hundred forty-two".