101373561 has 12 divisors (see below), whose sum is σ = 147499092. Its totient is φ = 67088256.

The previous prime is 101373541. The next prime is 101373563. The reversal of 101373561 is 165373101.

It can be written as a sum of positive squares in 2 ways, for example, as 27499536 + 73874025 = 5244^2 + 8595^2 .

It is not a de Polignac number, because 101373561 - 2⁹ = 101373049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101373563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39876 + ... + 42341.

It is an arithmetic number, because the mean of its divisors is an integer number (12291591).

Almost surely, 2^101373561 is an apocalyptic number.

It is an amenable number.

101373561 is a deficient number, since it is larger than the sum of its proper divisors (46125531).

101373561 is a wasteful number, since it uses less digits than its factorization.

101373561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82360 (or 82357 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 101373561 is about 10068.4438221604. The cubic root of 101373561 is about 466.2743952429.

The spelling of 101373561 in words is "one hundred one million, three hundred seventy-three thousand, five hundred sixty-one".