1975090 has 16 divisors (see below), whose sum is σ = 3828888. Its totient is φ = 729216.

The previous prime is 1975073. The next prime is 1975091. The reversal of 1975090 is 905791.

It can be written as a sum of positive squares in 4 ways, for example, as 1766241 + 208849 = 1329^2 + 457^2 .

It is not an unprimeable number, because it can be changed into a prime (1975091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7467 + ... + 7726.

2^1975090 is an apocalyptic number.

1975090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1975090 is a deficient number, since it is larger than the sum of its proper divisors (1853798).

1975090 is a wasteful number, since it uses less digits than its factorization.

1975090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15213.

The product of its (nonzero) digits is 2835, while the sum is 31.

The square root of 1975090 is about 1405.3789524538. The cubic root of 1975090 is about 125.4668409722.

The spelling of 1975090 in words is "one million, nine hundred seventy-five thousand, ninety".