101345551 has 4 divisors (see below), whose sum is σ = 107307072. Its totient is φ = 95384032.

The previous prime is 101345549. The next prime is 101345581. The reversal of 101345551 is 155543101.

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 101345551 - 2¹ = 101345549 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 (101345501) 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, 2980735 + ... + 2980768.

It is an arithmetic number, because the mean of its divisors is an integer number (26826768).

Almost surely, 2^101345551 is an apocalyptic number.

101345551 is a deficient number, since it is larger than the sum of its proper divisors (5961521).

101345551 is an equidigital number, since it uses as much as digits as its factorization.

101345551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5961520.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 101345551 is about 10067.0527464596. The cubic root of 101345551 is about 466.2314466714.

Adding to 101345551 its reverse (155543101), we get a palindrome (256888652).

It can be divided in two parts, 1013 and 45551, that added together give a palindrome (46564).

The spelling of 101345551 in words is "one hundred one million, three hundred forty-five thousand, five hundred fifty-one".