261003096 has 24 divisors (see below), whose sum is σ = 706883580. Its totient is φ = 87001008.

The previous prime is 261003073. The next prime is 261003097. The reversal of 261003096 is 690300162.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×261003096² = 136245232243170432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261003097) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1812450 + ... + 1812593.

Almost surely, 2^261003096 is an apocalyptic number.

It is an amenable number.

261003096 is an abundant number, since it is smaller than the sum of its proper divisors (445880484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261003096 is a wasteful number, since it uses less digits than its factorization.

261003096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3625055 (or 3625048 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 261003096 is about 16155.5902399139. The cubic root of 261003096 is about 639.0701797181.

The spelling of 261003096 in words is "two hundred sixty-one million, three thousand, ninety-six".