145143029515 has 32 divisors (see below), whose sum is σ = 191325435840. Its totient is φ = 104826009600.

The previous prime is 145143029509. The next prime is 145143029527. The reversal of 145143029515 is 515920341541.

It is not a de Polignac number, because 145143029515 - 2⁵ = 145143029483 is a prime.

It is a super-2 number, since 2×145143029515² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19692751 + ... + 19700119.

It is an arithmetic number, because the mean of its divisors is an integer number (5978919870).

Almost surely, 2^145143029515 is an apocalyptic number.

145143029515 is a deficient number, since it is larger than the sum of its proper divisors (46182406325).

145143029515 is a wasteful number, since it uses less digits than its factorization.

145143029515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9823.

The product of its (nonzero) digits is 108000, while the sum is 40.

The spelling of 145143029515 in words is "one hundred forty-five billion, one hundred forty-three million, twenty-nine thousand, five hundred fifteen".