109742957 has 2 divisors, whose sum is σ = 109742958. Its totient is φ = 109742956.

The previous prime is 109742951. The next prime is 109742977. The reversal of 109742957 is 759247901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75707401 + 34035556 = 8701^2 + 5834^2 .

It is a cyclic number.

It is not a de Polignac number, because 109742957 - 2²⁶ = 42634093 is a prime.

It is a super-2 number, since 2×109742957² = 24087033222207698, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109742951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54871478 + 54871479.

It is an arithmetic number, because the mean of its divisors is an integer number (54871479).

Almost surely, 2^109742957 is an apocalyptic number.

It is an amenable number.

109742957 is a deficient number, since it is larger than the sum of its proper divisors (1).

109742957 is an equidigital number, since it uses as much as digits as its factorization.

109742957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 109742957 is about 10475.8272704355. The cubic root of 109742957 is about 478.7684822220.

It can be divided in two parts, 10974 and 2957, that added together give a palindrome (13931).

The spelling of 109742957 in words is "one hundred nine million, seven hundred forty-two thousand, nine hundred fifty-seven".