145485447874 has 32 divisors (see below), whose sum is σ = 248973356016. Its totient is φ = 63163269120.

The previous prime is 145485447871. The next prime is 145485447883. The reversal of 145485447874 is 478744584541.

It can be written as a sum of positive squares in 8 ways, for example, as 110719235025 + 34766212849 = 332745^2 + 186457^2 .

It is a super-2 number, since 2×145485447874² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145485447871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741954 + ... + 917314.

Almost surely, 2^145485447874 is an apocalyptic number.

145485447874 is a deficient number, since it is larger than the sum of its proper divisors (103487908142).

145485447874 is a wasteful number, since it uses less digits than its factorization.

145485447874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177270.

The product of its digits is 80281600, while the sum is 61.

The spelling of 145485447874 in words is "one hundred forty-five billion, four hundred eighty-five million, four hundred forty-seven thousand, eight hundred seventy-four".