1975138 has 8 divisors (see below), whose sum is σ = 3232080. Its totient is φ = 897780.

The previous prime is 1975133. The next prime is 1975147. The reversal of 1975138 is 8315791.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (1975133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44868 + ... + 44911.

It is an arithmetic number, because the mean of its divisors is an integer number (404010).

2^1975138 is an apocalyptic number.

1975138 is a deficient number, since it is larger than the sum of its proper divisors (1256942).

1975138 is a wasteful number, since it uses less digits than its factorization.

1975138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89792.

The product of its digits is 7560, while the sum is 34.

The square root of 1975138 is about 1405.3960295945. The cubic root of 1975138 is about 125.4678573579.

It can be divided in two parts, 197 and 5138, that added together give a palindrome (5335).

The spelling of 1975138 in words is "one million, nine hundred seventy-five thousand, one hundred thirty-eight".