45670149 has 24 divisors (see below), whose sum is σ = 78187200. Its totient is φ = 26096256.

The previous prime is 45670147. The next prime is 45670181. The reversal of 45670149 is 94107654.

It is not a de Polignac number, because 45670149 - 2¹ = 45670147 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45670147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11724 + ... + 15125.

It is an arithmetic number, because the mean of its divisors is an integer number (3257800).

Almost surely, 2^45670149 is an apocalyptic number.

It is an amenable number.

45670149 is a deficient number, since it is larger than the sum of its proper divisors (32517051).

45670149 is an equidigital number, since it uses as much as digits as its factorization.

45670149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26871 (or 26859 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 45670149 is about 6757.9692955798. The cubic root of 45670149 is about 357.4463029201.

The spelling of 45670149 in words is "forty-five million, six hundred seventy thousand, one hundred forty-nine".