149642629 has 4 divisors (see below), whose sum is σ = 149716620. Its totient is φ = 149568640.

The previous prime is 149642617. The next prime is 149642641. The reversal of 149642629 is 926246941.

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

It is an interprime number because it is at equal distance from previous prime (149642617) and next prime (149642641).

It can be written as a sum of positive squares in 2 ways, for example, as 69056100 + 80586529 = 8310^2 + 8977^2 .

It is a cyclic number.

It is not a de Polignac number, because 149642629 - 2¹¹ = 149640581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149642029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33874 + ... + 38035.

It is an arithmetic number, because the mean of its divisors is an integer number (37429155).

Almost surely, 2^149642629 is an apocalyptic number.

It is an amenable number.

149642629 is a deficient number, since it is larger than the sum of its proper divisors (73991).

149642629 is an equidigital number, since it uses as much as digits as its factorization.

149642629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73990.

The product of its digits is 186624, while the sum is 43.

The square root of 149642629 is about 12232.8504037285. The cubic root of 149642629 is about 530.9069897609.

The spelling of 149642629 in words is "one hundred forty-nine million, six hundred forty-two thousand, six hundred twenty-nine".