145570131002 has 4 divisors (see below), whose sum is σ = 218355196506. Its totient is φ = 72785065500.

The previous prime is 145570130989. The next prime is 145570131019. The reversal of 145570131002 is 200131075541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200131075541 = 3911 ⋅51171331.

It can be written as a sum of positive squares in only one way, i.e., 138786796681 + 6783334321 = 372541^2 + 82361^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36392532749 + ... + 36392532752.

Almost surely, 2^145570131002 is an apocalyptic number.

145570131002 is a deficient number, since it is larger than the sum of its proper divisors (72785065504).

145570131002 is an equidigital number, since it uses as much as digits as its factorization.

145570131002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72785065503.

The product of its (nonzero) digits is 4200, while the sum is 29.

The spelling of 145570131002 in words is "one hundred forty-five billion, five hundred seventy million, one hundred thirty-one thousand, two".