2531098 has 4 divisors (see below), whose sum is σ = 3796650. Its totient is φ = 1265548.

The previous prime is 2531093. The next prime is 2531099. The reversal of 2531098 is 8901352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1545049 + 986049 = 1243^2 + 993^2 .

It is not an unprimeable number, because it can be changed into a prime (2531093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632773 + ... + 632776.

2^2531098 is an apocalyptic number.

2531098 is a deficient number, since it is larger than the sum of its proper divisors (1265552).

2531098 is a wasteful number, since it uses less digits than its factorization.

2531098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265551.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 2531098 is about 1590.9424879611. The cubic root of 2531098 is about 136.2813164836.

The spelling of 2531098 in words is "two million, five hundred thirty-one thousand, ninety-eight".