106787551 has 24 divisors (see below), whose sum is σ = 122484096. Its totient is φ = 92869920.

The previous prime is 106787531. The next prime is 106787561. The reversal of 106787551 is 155787601.

It is not a de Polignac number, because 106787551 - 2¹³ = 106779359 is a prime.

It is a super-2 number, since 2×106787551² = 22807162097155202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106787521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 322456 + ... + 322786.

It is an arithmetic number, because the mean of its divisors is an integer number (5103504).

Almost surely, 2^106787551 is an apocalyptic number.

106787551 is a deficient number, since it is larger than the sum of its proper divisors (15696545).

106787551 is a wasteful number, since it uses less digits than its factorization.

106787551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 40.

The square root of 106787551 is about 10333.8062203624. The cubic root of 106787551 is about 474.4315282445.

Subtracting 106787551 from its reverse (155787601), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 106787551 in words is "one hundred six million, seven hundred eighty-seven thousand, five hundred fifty-one".