145215007 has 16 divisors (see below), whose sum is σ = 170007552. Its totient is φ = 121451040.

The previous prime is 145215001. The next prime is 145215019. The reversal of 145215007 is 700512541.

It is a cyclic number.

It is not a de Polignac number, because 145215007 - 2¹⁵ = 145182239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145215001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187473 + ... + 188245.

It is an arithmetic number, because the mean of its divisors is an integer number (10625472).

Almost surely, 2^145215007 is an apocalyptic number.

145215007 is a deficient number, since it is larger than the sum of its proper divisors (24792545).

145215007 is an equidigital number, since it uses as much as digits as its factorization.

145215007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 145215007 is about 12050.5189514809. The cubic root of 145215007 is about 525.6183275531.

Adding to 145215007 its reverse (700512541), we get a palindrome (845727548).

The spelling of 145215007 in words is "one hundred forty-five million, two hundred fifteen thousand, seven".