145319872235 has 4 divisors (see below), whose sum is σ = 174383846688. Its totient is φ = 116255897784.

The previous prime is 145319872231. The next prime is 145319872279. The reversal of 145319872235 is 532278913541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 532278913541 = 163 ⋅3265514807.

It is a cyclic number.

It is not a de Polignac number, because 145319872235 - 2² = 145319872231 is a prime.

It is a super-2 number, since 2×145319872235² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145319872231) 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, 14531987219 + ... + 14531987228.

It is an arithmetic number, because the mean of its divisors is an integer number (43595961672).

Almost surely, 2^145319872235 is an apocalyptic number.

145319872235 is a deficient number, since it is larger than the sum of its proper divisors (29063974453).

145319872235 is an equidigital number, since it uses as much as digits as its factorization.

145319872235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29063974452.

The product of its digits is 1814400, while the sum is 50.

The spelling of 145319872235 in words is "one hundred forty-five billion, three hundred nineteen million, eight hundred seventy-two thousand, two hundred thirty-five".