145321673061 has 4 divisors (see below), whose sum is σ = 193762230752. Its totient is φ = 96881115372.

The previous prime is 145321673051. The next prime is 145321673093. The reversal of 145321673061 is 160376123541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 145321673061 - 2²¹ = 145319575909 is a prime.

It is a super-2 number, since 2×145321673061² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145321673011) 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, 24220278841 + ... + 24220278846.

It is an arithmetic number, because the mean of its divisors is an integer number (48440557688).

Almost surely, 2^145321673061 is an apocalyptic number.

It is an amenable number.

145321673061 is a deficient number, since it is larger than the sum of its proper divisors (48440557691).

145321673061 is an equidigital number, since it uses as much as digits as its factorization.

145321673061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48440557690.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 145321673061 in words is "one hundred forty-five billion, three hundred twenty-one million, six hundred seventy-three thousand, sixty-one".