122670749 has 2 divisors, whose sum is σ = 122670750. Its totient is φ = 122670748.

The previous prime is 122670731. The next prime is 122670781. The reversal of 122670749 is 947076221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100861849 + 21808900 = 10043^2 + 4670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122670749 is a prime.

It is a super-2 number, since 2×122670749² = 30096225320442002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122670049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61335374 + 61335375.

It is an arithmetic number, because the mean of its divisors is an integer number (61335375).

Almost surely, 2^122670749 is an apocalyptic number.

It is an amenable number.

122670749 is a deficient number, since it is larger than the sum of its proper divisors (1).

122670749 is an equidigital number, since it uses as much as digits as its factorization.

122670749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 122670749 is about 11075.6827780503. The cubic root of 122670749 is about 496.8748394393.

The spelling of 122670749 in words is "one hundred twenty-two million, six hundred seventy thousand, seven hundred forty-nine".