146687213425 has 12 divisors (see below), whose sum is σ = 181928874780. Its totient is φ = 117326073920.

The previous prime is 146687213411. The next prime is 146687213443. The reversal of 146687213425 is 524312786641.

It can be written as a sum of positive squares in 6 ways, for example, as 3416636304 + 143270577121 = 58452^2 + 378511^2 .

It is a de Polignac number, because none of the positive numbers 2^k-146687213425 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 465610 + ... + 714259.

It is an arithmetic number, because the mean of its divisors is an integer number (15160739565).

Almost surely, 2^146687213425 is an apocalyptic number.

It is an amenable number.

146687213425 is a deficient number, since it is larger than the sum of its proper divisors (35241661355).

146687213425 is a wasteful number, since it uses less digits than its factorization.

146687213425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184852 (or 1184847 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 49.

The spelling of 146687213425 in words is "one hundred forty-six billion, six hundred eighty-seven million, two hundred thirteen thousand, four hundred twenty-five".