145525015 has 16 divisors (see below), whose sum is σ = 188396928. Its totient is φ = 107501056.

The previous prime is 145525007. The next prime is 145525069. The reversal of 145525015 is 510525541.

It is a cyclic number.

It is not a de Polignac number, because 145525015 - 2³ = 145525007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11647 + ... + 20656.

It is an arithmetic number, because the mean of its divisors is an integer number (11774808).

Almost surely, 2^145525015 is an apocalyptic number.

145525015 is a deficient number, since it is larger than the sum of its proper divisors (42871913).

145525015 is a wasteful number, since it uses less digits than its factorization.

145525015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32378.

The product of its (nonzero) digits is 5000, while the sum is 28.

The square root of 145525015 is about 12063.3749423617. The cubic root of 145525015 is about 525.9920953286.

The spelling of 145525015 in words is "one hundred forty-five million, five hundred twenty-five thousand, fifteen".