145361532643 has 4 divisors (see below), whose sum is σ = 145363865128. Its totient is φ = 145359200160.

The previous prime is 145361532623. The next prime is 145361532691. The reversal of 145361532643 is 346235163541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346235163541 = 157 ⋅2205319513.

It is a cyclic number.

It is not a de Polignac number, because 145361532643 - 2⁹ = 145361532131 is a prime.

It is a super-2 number, since 2×145361532643² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145361532643.

It is not an unprimeable number, because it can be changed into a prime (145361532623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070121 + ... + 1198282.

It is an arithmetic number, because the mean of its divisors is an integer number (36340966282).

Almost surely, 2^145361532643 is an apocalyptic number.

145361532643 is a deficient number, since it is larger than the sum of its proper divisors (2332485).

145361532643 is an equidigital number, since it uses as much as digits as its factorization.

145361532643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332484.

The product of its digits is 777600, while the sum is 43.

The spelling of 145361532643 in words is "one hundred forty-five billion, three hundred sixty-one million, five hundred thirty-two thousand, six hundred forty-three".