102553345 has 4 divisors (see below), whose sum is σ = 123064020. Its totient is φ = 82042672.

The previous prime is 102553337. The next prime is 102553351. The reversal of 102553345 is 543355201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543355201 = 6709 ⋅80989.

It can be written as a sum of positive squares in 2 ways, for example, as 74080449 + 28472896 = 8607^2 + 5336^2 .

It is a cyclic number.

It is not a de Polignac number, because 102553345 - 2³ = 102553337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10255330 + ... + 10255339.

It is an arithmetic number, because the mean of its divisors is an integer number (30766005).

Almost surely, 2^102553345 is an apocalyptic number.

It is an amenable number.

102553345 is a deficient number, since it is larger than the sum of its proper divisors (20510675).

102553345 is an equidigital number, since it uses as much as digits as its factorization.

102553345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20510674.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 102553345 is about 10126.8625447371. The cubic root of 102553345 is about 468.0762547112.

The spelling of 102553345 in words is "one hundred two million, five hundred fifty-three thousand, three hundred forty-five".