101161551 has 8 divisors (see below), whose sum is σ = 135104560. Its totient is φ = 67329792.

The previous prime is 101161523. The next prime is 101161561. The reversal of 101161551 is 155161101.

It is a happy number.

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

It is not a de Polignac number, because 101161551 - 2¹⁴ = 101145167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101161561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25666 + ... + 29343.

It is an arithmetic number, because the mean of its divisors is an integer number (16888070).

Almost surely, 2^101161551 is an apocalyptic number.

101161551 is a deficient number, since it is larger than the sum of its proper divisors (33943009).

101161551 is an equidigital number, since it uses as much as digits as its factorization.

101161551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55625.

The product of its (nonzero) digits is 150, while the sum is 21.

The square root of 101161551 is about 10057.9098723343. The cubic root of 101161551 is about 465.9491170412.

The spelling of 101161551 in words is "one hundred one million, one hundred sixty-one thousand, five hundred fifty-one".