149497783 has 8 divisors (see below), whose sum is σ = 151635200. Its totient is φ = 147366648.

The previous prime is 149497781. The next prime is 149497793. The reversal of 149497783 is 387794941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149497783 - 2¹ = 149497781 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149497783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149497781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66760 + ... + 68962.

It is an arithmetic number, because the mean of its divisors is an integer number (18954400).

Almost surely, 2^149497783 is an apocalyptic number.

149497783 is a deficient number, since it is larger than the sum of its proper divisors (2137417).

149497783 is an equidigital number, since it uses as much as digits as its factorization.

149497783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141.

The product of its digits is 1524096, while the sum is 52.

The square root of 149497783 is about 12226.9286004295. The cubic root of 149497783 is about 530.7356380115.

The spelling of 149497783 in words is "one hundred forty-nine million, four hundred ninety-seven thousand, seven hundred eighty-three".