173144253748042 has 16 divisors (see below), whose sum is σ = 275700739771080. Its totient is φ = 81270189564928.

The previous prime is 173144253748019. The next prime is 173144253748069. The reversal of 173144253748042 is 240847352441371.

It is a Cunningham number, because it is equal to 13158429²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 134800900523641 + 38343353224401 = 11610379^2 + 6192201^2 .

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, 6545588383 + ... + 6545614834.

Almost surely, 2^{173144253748042} is an apocalyptic number.

173144253748042 is a deficient number, since it is larger than the sum of its proper divisors (102556486023038).

173144253748042 is a wasteful number, since it uses less digits than its factorization.

173144253748042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13091203625.

The product of its (nonzero) digits is 18063360, while the sum is 55.

The spelling of 173144253748042 in words is "one hundred seventy-three trillion, one hundred forty-four billion, two hundred fifty-three million, seven hundred forty-eight thousand, forty-two".