149575405 has 16 divisors (see below), whose sum is σ = 205870464. Its totient is φ = 102196800.

The previous prime is 149575373. The next prime is 149575409. The reversal of 149575405 is 504575941.

It is not a de Polignac number, because 149575405 - 2⁵ = 149575373 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 (149575409) 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, 2355 + ... + 17455.

It is an arithmetic number, because the mean of its divisors is an integer number (12866904).

Almost surely, 2^149575405 is an apocalyptic number.

It is an amenable number.

149575405 is a deficient number, since it is larger than the sum of its proper divisors (56295059).

149575405 is a wasteful number, since it uses less digits than its factorization.

149575405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15396.

The product of its (nonzero) digits is 126000, while the sum is 40.

The square root of 149575405 is about 12230.1024116726. The cubic root of 149575405 is about 530.8274780216.

The spelling of 149575405 in words is "one hundred forty-nine million, five hundred seventy-five thousand, four hundred five".