145214312013 has 12 divisors (see below), whose sum is σ = 220793691040. Its totient is φ = 91714302216.

The previous prime is 145214311993. The next prime is 145214312017. The reversal of 145214312013 is 310213412541.

145214312013 is a `hidden beast` number, since 1 + 4 + 5 + 21 + 431 + 201 + 3 = 666.

It is not a de Polignac number, because 145214312013 - 2⁵ = 145214311981 is a prime.

It is a super-2 number, since 2×145214312013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145214312017) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 424603081 + ... + 424603422.

Almost surely, 2^145214312013 is an apocalyptic number.

It is an amenable number.

145214312013 is a deficient number, since it is larger than the sum of its proper divisors (75579379027).

145214312013 is a wasteful number, since it uses less digits than its factorization.

145214312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849206528 (or 849206525 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 145214312013 its reverse (310213412541), we get a palindrome (455427724554).

The spelling of 145214312013 in words is "one hundred forty-five billion, two hundred fourteen million, three hundred twelve thousand, thirteen".