102690452 has 6 divisors (see below), whose sum is σ = 179708298. Its totient is φ = 51345224.

The previous prime is 102690451. The next prime is 102690457. The reversal of 102690452 is 254096201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 95961616 + 6728836 = 9796^2 + 2594^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102690451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12836303 + ... + 12836310.

It is an arithmetic number, because the mean of its divisors is an integer number (29951383).

Almost surely, 2^102690452 is an apocalyptic number.

It is an amenable number.

102690452 is a deficient number, since it is larger than the sum of its proper divisors (77017846).

102690452 is a wasteful number, since it uses less digits than its factorization.

102690452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25672617 (or 25672615 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 102690452 is about 10133.6297544365. The cubic root of 102690452 is about 468.2847574254.

The spelling of 102690452 in words is "one hundred two million, six hundred ninety thousand, four hundred fifty-two".