102450505 has 16 divisors (see below), whose sum is σ = 127378944. Its totient is φ = 79021440.

The previous prime is 102450503. The next prime is 102450547. The reversal of 102450505 is 505054201.

It is not a de Polignac number, because 102450505 - 2¹ = 102450503 is a prime.

It is a super-2 number, since 2×102450505² = 20992211949510050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102450503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46509 + ... + 48661.

It is an arithmetic number, because the mean of its divisors is an integer number (7961184).

Almost surely, 2^102450505 is an apocalyptic number.

It is an amenable number.

102450505 is a deficient number, since it is larger than the sum of its proper divisors (24928439).

102450505 is a wasteful number, since it uses less digits than its factorization.

102450505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 102450505 is about 10121.7836866829. The cubic root of 102450505 is about 467.9197408452.

It can be divided in two parts, 1024 and 50505, that added together give a square (51529 = 227²).

The spelling of 102450505 in words is "one hundred two million, four hundred fifty thousand, five hundred five".