902135441 has 4 divisors (see below), whose sum is σ = 902865972. Its totient is φ = 901404912.

The previous prime is 902135411. The next prime is 902135449. The reversal of 902135441 is 144531209.

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

It can be written as a sum of positive squares in 2 ways, for example, as 282374416 + 619761025 = 16804^2 + 24895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-902135441 is a prime.

It is a super-3 number, since 3×902135441³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (902135449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363410 + ... + 365883.

It is an arithmetic number, because the mean of its divisors is an integer number (225716493).

Almost surely, 2^902135441 is an apocalyptic number.

It is an amenable number.

902135441 is a deficient number, since it is larger than the sum of its proper divisors (730531).

902135441 is a wasteful number, since it uses less digits than its factorization.

902135441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730530.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 902135441 is about 30035.5695967298. The cubic root of 902135441 is about 966.2523909464.

The spelling of 902135441 in words is "nine hundred two million, one hundred thirty-five thousand, four hundred forty-one".