145499525135 has 8 divisors (see below), whose sum is σ = 174602176560. Its totient is φ = 116397789184.

The previous prime is 145499525113. The next prime is 145499525159. The reversal of 145499525135 is 531525994541.

It is a Cunningham number, because it is equal to 381444²-1.

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 145499525135 - 2⁶ = 145499525071 is a prime.

It is a super-2 number, since 2×145499525135² (a number of 23 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, 190724 + ... + 572166.

It is an arithmetic number, because the mean of its divisors is an integer number (21825272070).

Almost surely, 2^145499525135 is an apocalyptic number.

145499525135 is a deficient number, since it is larger than the sum of its proper divisors (29102651425).

145499525135 is an equidigital number, since it uses as much as digits as its factorization.

145499525135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457737.

The product of its digits is 4860000, while the sum is 53.

The spelling of 145499525135 in words is "one hundred forty-five billion, four hundred ninety-nine million, five hundred twenty-five thousand, one hundred thirty-five".