102454145 has 8 divisors (see below), whose sum is σ = 123625320. Its totient is φ = 81509760.

The previous prime is 102454127. The next prime is 102454153. The reversal of 102454145 is 541454201.

It can be written as a sum of positive squares in 4 ways, for example, as 2274064 + 100180081 = 1508^2 + 10009^2 .

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

It is not a de Polignac number, because 102454145 - 2⁶ = 102454081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55700 + ... + 57509.

It is an arithmetic number, because the mean of its divisors is an integer number (15453165).

Almost surely, 2^102454145 is an apocalyptic number.

It is an amenable number.

102454145 is a deficient number, since it is larger than the sum of its proper divisors (21171175).

102454145 is a wasteful number, since it uses less digits than its factorization.

102454145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113395.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 102454145 is about 10121.9634952908. The cubic root of 102454145 is about 467.9252824078.

The spelling of 102454145 in words is "one hundred two million, four hundred fifty-four thousand, one hundred forty-five".