149494946 has 4 divisors (see below), whose sum is σ = 224242422. Its totient is φ = 74747472.

The previous prime is 149494937. The next prime is 149494949. The reversal of 149494946 is 649494941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 140161921 + 9333025 = 11839^2 + 3055^2 .

It is a junction number, because it is equal to n+sod(n) for n = 149494894 and 149494903.

It is not an unprimeable number, because it can be changed into a prime (149494949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37373735 + ... + 37373738.

Almost surely, 2^149494946 is an apocalyptic number.

149494946 is a deficient number, since it is larger than the sum of its proper divisors (74747476).

149494946 is an equidigital number, since it uses as much as digits as its factorization.

149494946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74747475.

The product of its digits is 1119744, while the sum is 50.

The square root of 149494946 is about 12226.8125854615. The cubic root of 149494946 is about 530.7322807565.

The spelling of 149494946 in words is "one hundred forty-nine million, four hundred ninety-four thousand, nine hundred forty-six".