154212245503513 has 32 divisors (see below), whose sum is σ = 155870799593600. Its totient is φ = 152565231974400.

The previous prime is 154212245503489. The next prime is 154212245503523. The reversal of 154212245503513 is 315305542212451.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154212245503513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 154212245503513.

It is not an unprimeable number, because it can be changed into a prime (154212245503523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59472519145 + ... + 59472521737.

It is an arithmetic number, because the mean of its divisors is an integer number (4870962487300).

Almost surely, 2^{154212245503513} is an apocalyptic number.

It is an amenable number.

154212245503513 is a deficient number, since it is larger than the sum of its proper divisors (1658554090087).

154212245503513 is a wasteful number, since it uses less digits than its factorization.

154212245503513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5033.

The product of its (nonzero) digits is 720000, while the sum is 43.

Adding to 154212245503513 its reverse (315305542212451), we get a palindrome (469517787715964).

The spelling of 154212245503513 in words is "one hundred fifty-four trillion, two hundred twelve billion, two hundred forty-five million, five hundred three thousand, five hundred thirteen".