145412020252340 has 24 divisors (see below), whose sum is σ = 307769693263872. Its totient is φ = 57706817484960.

The previous prime is 145412020252313. The next prime is 145412020252349. The reversal of 145412020252340 is 43252020214541.

It is a super-2 number, since 2×145412020252340² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145412020252340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145412020252349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28624410896 + ... + 28624415975.

It is an arithmetic number, because the mean of its divisors is an integer number (12823737219328).

Almost surely, 2^{145412020252340} is an apocalyptic number.

145412020252340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145412020252340 is an abundant number, since it is smaller than the sum of its proper divisors (162357673011532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145412020252340 is a wasteful number, since it uses less digits than its factorization.

145412020252340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57248827007 (or 57248827005 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 145412020252340 its reverse (43252020214541), we get a palindrome (188664040466881).

The spelling of 145412020252340 in words is "one hundred forty-five trillion, four hundred twelve billion, twenty million, two hundred fifty-two thousand, three hundred forty".