101552401 has 6 divisors (see below), whose sum is σ = 102080706. Its totient is φ = 101026800.

The previous prime is 101552389. The next prime is 101552447. The reversal of 101552401 is 104255101.

It can be written as a sum of positive squares in only one way, i.e., 90155025 + 11397376 = 9495^2 + 3376^2 .

It is a de Polignac number, because none of the positive numbers 2^k-101552401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101552491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43381 + ... + 45661.

It is an arithmetic number, because the mean of its divisors is an integer number (17013451).

Almost surely, 2^101552401 is an apocalyptic number.

It is an amenable number.

101552401 is a deficient number, since it is larger than the sum of its proper divisors (528305).

101552401 is an frugal number, since it uses more digits than its factorization.

101552401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703 (or 2492 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 101552401 is about 10077.3211222031. The cubic root of 101552401 is about 466.5484296259.

The spelling of 101552401 in words is "one hundred one million, five hundred fifty-two thousand, four hundred one".