149436445 has 4 divisors (see below), whose sum is σ = 179323740. Its totient is φ = 119549152.

The previous prime is 149436407. The next prime is 149436467. The reversal of 149436445 is 544634941.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37478884 + 111957561 = 6122^2 + 10581^2 .

It is a cyclic number.

It is not a de Polignac number, because 149436445 - 2¹⁹ = 148912157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149436398 and 149436407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14943640 + ... + 14943649.

It is an arithmetic number, because the mean of its divisors is an integer number (44830935).

Almost surely, 2^149436445 is an apocalyptic number.

It is an amenable number.

149436445 is a deficient number, since it is larger than the sum of its proper divisors (29887295).

149436445 is an equidigital number, since it uses as much as digits as its factorization.

149436445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29887294.

The product of its digits is 207360, while the sum is 40.

The square root of 149436445 is about 12224.4200271424. The cubic root of 149436445 is about 530.6630422508.

The spelling of 149436445 in words is "one hundred forty-nine million, four hundred thirty-six thousand, four hundred forty-five".