145070625821 has 16 divisors (see below), whose sum is σ = 161248651776. Its totient is φ = 129408510000.

The previous prime is 145070625809. The next prime is 145070625877. The reversal of 145070625821 is 128526070541.

It is a de Polignac number, because none of the positive numbers 2^k-145070625821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145070625221) 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, 275375 + ... + 604956.

It is an arithmetic number, because the mean of its divisors is an integer number (10078040736).

Almost surely, 2^145070625821 is an apocalyptic number.

145070625821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145070625821 is a deficient number, since it is larger than the sum of its proper divisors (16178025955).

145070625821 is a wasteful number, since it uses less digits than its factorization.

145070625821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880624.

The product of its (nonzero) digits is 134400, while the sum is 41.

The spelling of 145070625821 in words is "one hundred forty-five billion, seventy million, six hundred twenty-five thousand, eight hundred twenty-one".