102462145 has 8 divisors (see below), whose sum is σ = 130187304. Its totient is φ = 77147904.

The previous prime is 102462121. The next prime is 102462149. The reversal of 102462145 is 541264201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20903184 + 81558961 = 4572^2 + 9031^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102462145 - 2⁹ = 102461633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102462149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602634 + ... + 602803.

It is an arithmetic number, because the mean of its divisors is an integer number (16273413).

Almost surely, 2^102462145 is an apocalyptic number.

It is an amenable number.

102462145 is a deficient number, since it is larger than the sum of its proper divisors (27725159).

102462145 is a wasteful number, since it uses less digits than its factorization.

102462145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205459.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 102462145 is about 10122.3586678205. The cubic root of 102462145 is about 467.9374612053.

The spelling of 102462145 in words is "one hundred two million, four hundred sixty-two thousand, one hundred forty-five".