1401403165 has 8 divisors (see below), whose sum is σ = 1722700728. Its totient is φ = 1093777920.

The previous prime is 1401403147. The next prime is 1401403169. The reversal of 1401403165 is 5613041041.

It can be written as a sum of positive squares in 4 ways, for example, as 123054649 + 1278348516 = 11093^2 + 35754^2 .

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

It is not a de Polignac number, because 1401403165 - 2¹⁹ = 1400878877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401403169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3417852 + ... + 3418261.

It is an arithmetic number, because the mean of its divisors is an integer number (215337591).

Almost surely, 2^1401403165 is an apocalyptic number.

It is an amenable number.

1401403165 is a deficient number, since it is larger than the sum of its proper divisors (321297563).

1401403165 is an equidigital number, since it uses as much as digits as its factorization.

1401403165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6836159.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1401403165 is about 37435.3197528751. The cubic root of 1401403165 is about 1119.0625566155.

The spelling of 1401403165 in words is "one billion, four hundred one million, four hundred three thousand, one hundred sixty-five".