145311230145355 has 64 divisors (see below), whose sum is σ = 188731651829760. Its totient is φ = 106984959105024.

The previous prime is 145311230145307. The next prime is 145311230145407. The reversal of 145311230145355 is 553541032113541.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 145311230145355 - 2¹¹ = 145311230143307 is a prime.

It is a super-2 number, since 2×145311230145355² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 39072660186 + ... + 39072663904.

It is an arithmetic number, because the mean of its divisors is an integer number (2948932059840).

Almost surely, 2^{145311230145355} is an apocalyptic number.

145311230145355 is a deficient number, since it is larger than the sum of its proper divisors (43420421684405).

145311230145355 is a wasteful number, since it uses less digits than its factorization.

145311230145355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10108.

The product of its (nonzero) digits is 540000, while the sum is 43.

Adding to 145311230145355 its reverse (553541032113541), we get a palindrome (698852262258896).

The spelling of 145311230145355 in words is "one hundred forty-five trillion, three hundred eleven billion, two hundred thirty million, one hundred forty-five thousand, three hundred fifty-five".