101540147 has 4 divisors (see below), whose sum is σ = 105954960. Its totient is φ = 97125336.

The previous prime is 101540143. The next prime is 101540171. The reversal of 101540147 is 741045101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101540147 - 2² = 101540143 is a prime.

It is a super-3 number, since 3×101540147³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 4414789 = 101540147 / (1 + 0 + 1 + 5 + 4 + 0 + 1 + 4 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101540143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2207372 + ... + 2207417.

It is an arithmetic number, because the mean of its divisors is an integer number (26488740).

Almost surely, 2^101540147 is an apocalyptic number.

101540147 is a deficient number, since it is larger than the sum of its proper divisors (4414813).

101540147 is an equidigital number, since it uses as much as digits as its factorization.

101540147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4414812.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 101540147 is about 10076.7131049762. The cubic root of 101540147 is about 466.5296632407.

Adding to 101540147 its reverse (741045101), we get a palindrome (842585248).

The spelling of 101540147 in words is "one hundred one million, five hundred forty thousand, one hundred forty-seven".