102152623 has 4 divisors (see below), whose sum is σ = 103552048. Its totient is φ = 100753200.

The previous prime is 102152551. The next prime is 102152639. The reversal of 102152623 is 326251201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326251201 = 5507 ⋅59243.

It is a cyclic number.

It is not a de Polignac number, because 102152623 - 2¹⁷ = 102021551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102152594 and 102152603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102152653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699603 + ... + 699748.

It is an arithmetic number, because the mean of its divisors is an integer number (25888012).

Almost surely, 2^102152623 is an apocalyptic number.

102152623 is a deficient number, since it is larger than the sum of its proper divisors (1399425).

102152623 is an equidigital number, since it uses as much as digits as its factorization.

102152623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1399424.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 102152623 is about 10107.0580783925. The cubic root of 102152623 is about 467.4657974921.

The spelling of 102152623 in words is "one hundred two million, one hundred fifty-two thousand, six hundred twenty-three".