145271154511138 has 4 divisors (see below), whose sum is σ = 217906731766710. Its totient is φ = 72635577255568.

The previous prime is 145271154511127. The next prime is 145271154511193. The reversal of 145271154511138 is 831115451172541.

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., 110483370365449 + 34787784145689 = 10511107^2 + 5898117^2 .

It is a super-2 number, since 2×145271154511138² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145271154511091 and 145271154511100.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36317788627783 + ... + 36317788627786.

Almost surely, 2^{145271154511138} is an apocalyptic number.

145271154511138 is a deficient number, since it is larger than the sum of its proper divisors (72635577255572).

145271154511138 is an equidigital number, since it uses as much as digits as its factorization.

145271154511138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72635577255571.

The product of its digits is 672000, while the sum is 49.

The spelling of 145271154511138 in words is "one hundred forty-five trillion, two hundred seventy-one billion, one hundred fifty-four million, five hundred eleven thousand, one hundred thirty-eight".