101402661 has 8 divisors (see below), whose sum is σ = 135567520. Its totient is φ = 67419792.

The previous prime is 101402659. The next prime is 101402669. The reversal of 101402661 is 166204101.

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

It is not a de Polignac number, because 101402661 - 2¹ = 101402659 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 (101402669) 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, 44191 + ... + 46428.

It is an arithmetic number, because the mean of its divisors is an integer number (16945940).

Almost surely, 2^101402661 is an apocalyptic number.

It is an amenable number.

101402661 is a deficient number, since it is larger than the sum of its proper divisors (34164859).

101402661 is an equidigital number, since it uses as much as digits as its factorization.

101402661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90995.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 101402661 is about 10069.8888275889. Note that the first 4 decimals coincide. The cubic root of 101402661 is about 466.3190067657.

Adding to 101402661 its reverse (166204101), we get a palindrome (267606762).

The spelling of 101402661 in words is "one hundred one million, four hundred two thousand, six hundred sixty-one".