403140891261 has 8 divisors (see below), whose sum is σ = 537584452704. Its totient is φ = 268728962000.

The previous prime is 403140891253. The next prime is 403140891269. The reversal of 403140891261 is 162198041304.

It is an interprime number because it is at equal distance from previous prime (403140891253) and next prime (403140891269).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 403140891261 - 2³ = 403140891253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403140891269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7878291 + ... + 7929296.

It is an arithmetic number, because the mean of its divisors is an integer number (67198056588).

Almost surely, 2^403140891261 is an apocalyptic number.

It is an amenable number.

403140891261 is a deficient number, since it is larger than the sum of its proper divisors (134443561443).

403140891261 is a wasteful number, since it uses less digits than its factorization.

403140891261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15816091.

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 403140891261 in words is "four hundred three billion, one hundred forty million, eight hundred ninety-one thousand, two hundred sixty-one".