101361551 has 4 divisors (see below), whose sum is σ = 101406504. Its totient is φ = 101316600.

The previous prime is 101361527. The next prime is 101361577. The reversal of 101361551 is 155163101.

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 101361551 - 2⁶ = 101361487 is a prime.

It is a super-2 number, since 2×101361551² = 20548328042251202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101361521) 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, 18905 + ... + 23666.

It is an arithmetic number, because the mean of its divisors is an integer number (25351626).

Almost surely, 2^101361551 is an apocalyptic number.

101361551 is a deficient number, since it is larger than the sum of its proper divisors (44953).

101361551 is an equidigital number, since it uses as much as digits as its factorization.

101361551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44952.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 101361551 is about 10067.8473866065. The cubic root of 101361551 is about 466.2559809193.

The spelling of 101361551 in words is "one hundred one million, three hundred sixty-one thousand, five hundred fifty-one".