149730457 has 8 divisors (see below), whose sum is σ = 150897600. Its totient is φ = 148567344.

The previous prime is 149730421. The next prime is 149730463. The reversal of 149730457 is 754037941.

149730457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 149730457 - 2¹⁵ = 149697689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149730487) 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, 149683 + ... + 150679.

It is an arithmetic number, because the mean of its divisors is an integer number (18862200).

Almost surely, 2^149730457 is an apocalyptic number.

It is an amenable number.

149730457 is a deficient number, since it is larger than the sum of its proper divisors (1167143).

149730457 is an equidigital number, since it uses as much as digits as its factorization.

149730457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2015.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 149730457 is about 12236.4397191340. The cubic root of 149730457 is about 531.0108357928.

The spelling of 149730457 in words is "one hundred forty-nine million, seven hundred thirty thousand, four hundred fifty-seven".