101561377 has 8 divisors (see below), whose sum is σ = 102453120. Its totient is φ = 100674000.

The previous prime is 101561359. The next prime is 101561381. The reversal of 101561377 is 773165101.

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

It is a cyclic number.

It is not a de Polignac number, because 101561377 - 2⁷ = 101561249 is a prime.

It is a super-2 number, since 2×101561377² = 20629426596272258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101561477) 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 7 ways as a sum of consecutive naturals, for example, 59143 + ... + 60835.

It is an arithmetic number, because the mean of its divisors is an integer number (12806640).

Almost surely, 2^101561377 is an apocalyptic number.

It is an amenable number.

101561377 is a deficient number, since it is larger than the sum of its proper divisors (891743).

101561377 is a wasteful number, since it uses less digits than its factorization.

101561377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183.

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 101561377 is about 10077.7664688164. The cubic root of 101561377 is about 466.5621749609.

The spelling of 101561377 in words is "one hundred one million, five hundred sixty-one thousand, three hundred seventy-seven".