45405215 has 16 divisors (see below), whose sum is σ = 58296672. Its totient is φ = 33828864.

The previous prime is 45405209. The next prime is 45405223. The reversal of 45405215 is 51250454.

It is a cyclic number.

It is not a de Polignac number, because 45405215 - 2¹² = 45401119 is a prime.

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, 5492 + ... + 10998.

It is an arithmetic number, because the mean of its divisors is an integer number (3643542).

Almost surely, 2^45405215 is an apocalyptic number.

45405215 is a deficient number, since it is larger than the sum of its proper divisors (12891457).

45405215 is a wasteful number, since it uses less digits than its factorization.

45405215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5626.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 45405215 is about 6738.3391870698. The cubic root of 45405215 is about 356.7537762408.

Adding to 45405215 its reverse (51250454), we get a palindrome (96655669).

The spelling of 45405215 in words is "forty-five million, four hundred five thousand, two hundred fifteen".