102450540545 has 32 divisors (see below), whose sum is σ = 133957587456. Its totient is φ = 74921267200.

The previous prime is 102450540539. The next prime is 102450540553. The reversal of 102450540545 is 545045054201.

It is not a de Polignac number, because 102450540545 - 2⁶ = 102450540481 is a prime.

It is a super-2 number, since 2×102450540545² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425465 + ... + 621225.

It is an arithmetic number, because the mean of its divisors is an integer number (4186174608).

Almost surely, 2^102450540545 is an apocalyptic number.

It is an amenable number.

102450540545 is a deficient number, since it is larger than the sum of its proper divisors (31507046911).

102450540545 is a wasteful number, since it uses less digits than its factorization.

102450540545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195961.

The product of its (nonzero) digits is 80000, while the sum is 35.

Adding to 102450540545 its reverse (545045054201), we get a palindrome (647495594746).

The spelling of 102450540545 in words is "one hundred two billion, four hundred fifty million, five hundred forty thousand, five hundred forty-five".