145415421021214 has 16 divisors (see below), whose sum is σ = 227610904284288. Its totient is φ = 69545235102552.

The previous prime is 145415421021149. The next prime is 145415421021257. The reversal of 145415421021214 is 412120124514541.

It is a super-2 number, since 2×145415421021214² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26329752 + ... + 31370155.

It is an arithmetic number, because the mean of its divisors is an integer number (14225681517768).

Almost surely, 2^{145415421021214} is an apocalyptic number.

145415421021214 is a deficient number, since it is larger than the sum of its proper divisors (82195483263074).

145415421021214 is a wasteful number, since it uses less digits than its factorization.

145415421021214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57754719.

The product of its (nonzero) digits is 51200, while the sum is 37.

Adding to 145415421021214 its reverse (412120124514541), we get a palindrome (557535545535755).

The spelling of 145415421021214 in words is "one hundred forty-five trillion, four hundred fifteen billion, four hundred twenty-one million, twenty-one thousand, two hundred fourteen".