102475787 has 4 divisors (see below), whose sum is σ = 106931280. Its totient is φ = 98020296.

The previous prime is 102475781. The next prime is 102475811. The reversal of 102475787 is 787574201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 787574201 = 701 ⋅1123501.

It is not a de Polignac number, because 102475787 - 2⁴ = 102475771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102475781) 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, 2227712 + ... + 2227757.

It is an arithmetic number, because the mean of its divisors is an integer number (26732820).

Almost surely, 2^102475787 is an apocalyptic number.

102475787 is a deficient number, since it is larger than the sum of its proper divisors (4455493).

102475787 is an equidigital number, since it uses as much as digits as its factorization.

102475787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4455492.

The product of its (nonzero) digits is 109760, while the sum is 41.

The square root of 102475787 is about 10123.0325001948. The cubic root of 102475787 is about 467.9582276374.

The spelling of 102475787 in words is "one hundred two million, four hundred seventy-five thousand, seven hundred eighty-seven".