145607215 has 8 divisors (see below), whose sum is σ = 188169408. Its totient is φ = 107525280.

The previous prime is 145607213. The next prime is 145607219. The reversal of 145607215 is 512706541.

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

It is not a de Polignac number, because 145607215 - 2¹ = 145607213 is a prime.

It is a super-2 number, since 2×145607215² = 42402922120112450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145607213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119991 + ... + 1120120.

It is an arithmetic number, because the mean of its divisors is an integer number (23521176).

Almost surely, 2^145607215 is an apocalyptic number.

145607215 is a deficient number, since it is larger than the sum of its proper divisors (42562193).

145607215 is a wasteful number, since it uses less digits than its factorization.

145607215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2240129.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 145607215 is about 12066.7814681463. The cubic root of 145607215 is about 526.0911124679.

The spelling of 145607215 in words is "one hundred forty-five million, six hundred seven thousand, two hundred fifteen".