145535515 has 8 divisors (see below), whose sum is σ = 176275440. Its totient is φ = 115339872.

The previous prime is 145535503. The next prime is 145535531. The reversal of 145535515 is 515535541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145535515 - 2⁷ = 145535387 is a prime.

It is a super-2 number, since 2×145535515² = 42361172252630450, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135480 + ... + 136549.

It is an arithmetic number, because the mean of its divisors is an integer number (22034430).

Almost surely, 2^145535515 is an apocalyptic number.

145535515 is a deficient number, since it is larger than the sum of its proper divisors (30739925).

145535515 is a wasteful number, since it uses less digits than its factorization.

145535515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272141.

The product of its digits is 37500, while the sum is 34.

The square root of 145535515 is about 12063.8101361054. The cubic root of 145535515 is about 526.0047455802.

The spelling of 145535515 in words is "one hundred forty-five million, five hundred thirty-five thousand, five hundred fifteen".