149550946 has 4 divisors (see below), whose sum is σ = 224326422. Its totient is φ = 74775472.

The previous prime is 149550937. The next prime is 149550967. The reversal of 149550946 is 649055941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649055941 = 19 ⋅34160839.

It can be written as a sum of positive squares in only one way, i.e., 141491025 + 8059921 = 11895^2 + 2839^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37387735 + ... + 37387738.

Almost surely, 2^149550946 is an apocalyptic number.

149550946 is a deficient number, since it is larger than the sum of its proper divisors (74775476).

149550946 is an equidigital number, since it uses as much as digits as its factorization.

149550946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74775475.

The product of its (nonzero) digits is 194400, while the sum is 43.

The square root of 149550946 is about 12229.1024200470. The cubic root of 149550946 is about 530.7985422995.

It can be divided in two parts, 1495 and 50946, that added together give a square (52441 = 229²).

The spelling of 149550946 in words is "one hundred forty-nine million, five hundred fifty thousand, nine hundred forty-six".