149645456 has 10 divisors (see below), whose sum is σ = 289938102. Its totient is φ = 74822720.

The previous prime is 149645453. The next prime is 149645471. The reversal of 149645456 is 654546941.

It can be written as a sum of positive squares in only one way, i.e., 134560000 + 15085456 = 11600^2 + 3884^2 .

It is not an unprimeable number, because it can be changed into a prime (149645453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4676405 + ... + 4676436.

Almost surely, 2^149645456 is an apocalyptic number.

149645456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

149645456 is a deficient number, since it is larger than the sum of its proper divisors (140292646).

149645456 is an equidigital number, since it uses as much as digits as its factorization.

149645456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9352849 (or 9352843 counting only the distinct ones).

The product of its digits is 518400, while the sum is 44.

The square root of 149645456 is about 12232.9659527034. The cubic root of 149645456 is about 530.9103329807.

The spelling of 149645456 in words is "one hundred forty-nine million, six hundred forty-five thousand, four hundred fifty-six".