902131 has 4 divisors (see below), whose sum is σ = 931264. Its totient is φ = 873000.

The previous prime is 902119. The next prime is 902137. The reversal of 902131 is 131209.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131209 = 13 ⋅10093.

It is a cyclic number.

It is not a de Polignac number, because 902131 - 2¹³ = 893939 is a prime.

It is a super-2 number, since 2×902131² = 1627680682322, which contains 22 as substring.

It is a Duffinian number.

902131 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (902137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14520 + ... + 14581.

It is an arithmetic number, because the mean of its divisors is an integer number (232816).

2⁹⁰²¹³¹ is an apocalyptic number.

902131 is a deficient number, since it is larger than the sum of its proper divisors (29133).

902131 is a wasteful number, since it uses less digits than its factorization.

902131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29132.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 902131 is about 949.8057696182. The cubic root of 902131 is about 96.6250805400.

The spelling of 902131 in words is "nine hundred two thousand, one hundred thirty-one".