122770551 has 24 divisors (see below), whose sum is σ = 170190720. Its totient is φ = 78715872.

The previous prime is 122770537. The next prime is 122770559. The reversal of 122770551 is 155077221.

It is not a de Polignac number, because 122770551 - 2¹³ = 122762359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122770559) 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, 685780 + ... + 685958.

It is an arithmetic number, because the mean of its divisors is an integer number (7091280).

Almost surely, 2^122770551 is an apocalyptic number.

122770551 is a deficient number, since it is larger than the sum of its proper divisors (47420169).

122770551 is a wasteful number, since it uses less digits than its factorization.

122770551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 122770551 is about 11080.1873179112. The cubic root of 122770551 is about 497.0095514252.

It can be divided in two parts, 122770 and 551, that added together give a palindrome (123321).

The spelling of 122770551 in words is "one hundred twenty-two million, seven hundred seventy thousand, five hundred fifty-one".