101621151 has 12 divisors (see below), whose sum is σ = 146943160. Its totient is φ = 67674960.

The previous prime is 101621147. The next prime is 101621159. The reversal of 101621151 is 151126101.

It is a happy number.

It is not a de Polignac number, because 101621151 - 2² = 101621147 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 (101621159) 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, 3660 + ... + 14718.

Almost surely, 2^101621151 is an apocalyptic number.

101621151 is a deficient number, since it is larger than the sum of its proper divisors (45322009).

101621151 is a wasteful number, since it uses less digits than its factorization.

101621151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12086 (or 12083 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

The square root of 101621151 is about 10080.7316698740. The cubic root of 101621151 is about 466.6536888114.

Adding to 101621151 its reverse (151126101), we get a palindrome (252747252).

The spelling of 101621151 in words is "one hundred one million, six hundred twenty-one thousand, one hundred fifty-one".