145246551029 has 4 divisors (see below), whose sum is σ = 145247731020. Its totient is φ = 145245371040.

The previous prime is 145246551017. The next prime is 145246551031. The reversal of 145246551029 is 920155642541.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 90178888804 + 55067662225 = 300298^2 + 234665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145246551029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145246551089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 380582 + ... + 659799.

It is an arithmetic number, because the mean of its divisors is an integer number (36311932755).

Almost surely, 2^145246551029 is an apocalyptic number.

It is an amenable number.

145246551029 is a deficient number, since it is larger than the sum of its proper divisors (1179991).

145246551029 is a wasteful number, since it uses less digits than its factorization.

145246551029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179990.

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 145246551029 in words is "one hundred forty-five billion, two hundred forty-six million, five hundred fifty-one thousand, twenty-nine".