1521098 has 4 divisors (see below), whose sum is σ = 2281650. Its totient is φ = 760548.

The previous prime is 1521089. The next prime is 1521103. The reversal of 1521098 is 8901251.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8901251 = 17 ⋅523603.

It can be written as a sum of positive squares in only one way, i.e., 1471369 + 49729 = 1213^2 + 223^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380273 + ... + 380276.

2^1521098 is an apocalyptic number.

1521098 is a deficient number, since it is larger than the sum of its proper divisors (760552).

1521098 is an equidigital number, since it uses as much as digits as its factorization.

1521098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760551.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 1521098 is about 1233.3280180066. The cubic root of 1521098 is about 115.0056203932.

The spelling of 1521098 in words is "one million, five hundred twenty-one thousand, ninety-eight".