102697749 has 24 divisors (see below), whose sum is σ = 184946112. Its totient is φ = 53349120.

The previous prime is 102697739. The next prime is 102697753. The reversal of 102697749 is 947796201.

It is not a de Polignac number, because 102697749 - 2⁴ = 102697733 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102697739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73404 + ... + 74789.

It is an arithmetic number, because the mean of its divisors is an integer number (7706088).

Almost surely, 2^102697749 is an apocalyptic number.

It is an amenable number.

102697749 is a deficient number, since it is larger than the sum of its proper divisors (82248363).

102697749 is a wasteful number, since it uses less digits than its factorization.

102697749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148217 (or 148214 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 102697749 is about 10133.9897868510. The cubic root of 102697749 is about 468.2958489887.

The spelling of 102697749 in words is "one hundred two million, six hundred ninety-seven thousand, seven hundred forty-nine".