122761740 has 24 divisors (see below), whose sum is σ = 343733040. Its totient is φ = 32736448.

The previous prime is 122761733. The next prime is 122761747. The reversal of 122761740 is 47167221.

It is an interprime number because it is at equal distance from previous prime (122761733) and next prime (122761747).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 122761698 and 122761707.

It is not an unprimeable number, because it can be changed into a prime (122761747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1022955 + ... + 1023074.

It is an arithmetic number, because the mean of its divisors is an integer number (14322210).

Almost surely, 2^122761740 is an apocalyptic number.

122761740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122761740 is an abundant number, since it is smaller than the sum of its proper divisors (220971300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122761740 is a wasteful number, since it uses less digits than its factorization.

122761740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046041 (or 2046039 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 122761740 is about 11079.7897091957. The cubic root of 122761740 is about 496.9976613428.

The spelling of 122761740 in words is "one hundred twenty-two million, seven hundred sixty-one thousand, seven hundred forty".