145101121234 has 4 divisors (see below), whose sum is σ = 217651681854. Its totient is φ = 72550560616.

The previous prime is 145101121219. The next prime is 145101121271. The reversal of 145101121234 is 432121101541.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 140285455209 + 4815666025 = 374547^2 + 69395^2 .

It is a junction number, because it is equal to n+sod(n) for n = 145101121199 and 145101121208.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36275280307 + ... + 36275280310.

Almost surely, 2^145101121234 is an apocalyptic number.

145101121234 is a deficient number, since it is larger than the sum of its proper divisors (72550560620).

145101121234 is an equidigital number, since it uses as much as digits as its factorization.

145101121234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72550560619.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 145101121234 its reverse (432121101541), we get a palindrome (577222222775).

The spelling of 145101121234 in words is "one hundred forty-five billion, one hundred one million, one hundred twenty-one thousand, two hundred thirty-four".