101401642 has 8 divisors (see below), whose sum is σ = 154596132. Its totient is φ = 49869600.

The previous prime is 101401633. The next prime is 101401649. The reversal of 101401642 is 246104101.

It can be written as a sum of positive squares in 2 ways, for example, as 97634161 + 3767481 = 9881^2 + 1941^2 .

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

It is not an unprimeable number, because it can be changed into a prime (101401649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415459 + ... + 415702.

Almost surely, 2^101401642 is an apocalyptic number.

101401642 is a deficient number, since it is larger than the sum of its proper divisors (53194490).

101401642 is an equidigital number, since it uses as much as digits as its factorization.

101401642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831224.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 101401642 is about 10069.8382310740. The cubic root of 101401642 is about 466.3174447401.

Adding to 101401642 its reverse (246104101), we get a palindrome (347505743).

The spelling of 101401642 in words is "one hundred one million, four hundred one thousand, six hundred forty-two".