102145155150545 has 16 divisors (see below), whose sum is σ = 132119890084560. Its totient is φ = 75363456789504.

The previous prime is 102145155150523. The next prime is 102145155150557. The reversal of 102145155150545 is 545051551541201.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 19587360429121 + 82557794721424 = 4425761^2 + 9086132^2 .

It is not a de Polignac number, because 102145155150545 - 2²⁴ = 102145138373329 is a prime.

It is a super-2 number, since 2×102145155150545² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102145155150496 and 102145155150505.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 695880524 + ... + 696027293.

It is an arithmetic number, because the mean of its divisors is an integer number (8257493130285).

Almost surely, 2^{102145155150545} is an apocalyptic number.

It is an amenable number.

102145155150545 is a deficient number, since it is larger than the sum of its proper divisors (29974734934015).

102145155150545 is a wasteful number, since it uses less digits than its factorization.

102145155150545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391908964.

The product of its (nonzero) digits is 500000, while the sum is 44.

The spelling of 102145155150545 in words is "one hundred two trillion, one hundred forty-five billion, one hundred fifty-five million, one hundred fifty thousand, five hundred forty-five".