101402001 has 6 divisors (see below), whose sum is σ = 146469570. Its totient is φ = 67601328.

The previous prime is 101401999. The next prime is 101402003. The reversal of 101402001 is 100204101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (101401999) and next prime (101402003).

It can be written as a sum of positive squares in only one way, i.e., 65221776 + 36180225 = 8076^2 + 6015^2 .

It is not a de Polignac number, because 101402001 - 2¹ = 101401999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 11266889 = 101402001 / (1 + 0 + 1 + 4 + 0 + 2 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (101402003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5633436 + ... + 5633453.

It is an arithmetic number, because the mean of its divisors is an integer number (24411595).

Almost surely, 2^101402001 is an apocalyptic number.

It is an amenable number.

101402001 is a deficient number, since it is larger than the sum of its proper divisors (45067569).

101402001 is a wasteful number, since it uses less digits than its factorization.

101402001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11266895 (or 11266892 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 101402001 is about 10069.8560565680. The cubic root of 101402001 is about 466.3179950525.

Adding to 101402001 its reverse (100204101), we get a palindrome (201606102).

The spelling of 101402001 in words is "one hundred one million, four hundred two thousand, one".