149649702947 has 2 divisors, whose sum is σ = 149649702948. Its totient is φ = 149649702946.

The previous prime is 149649702893. The next prime is 149649702949. The reversal of 149649702947 is 749207946941.

It is a strong prime.

It is an emirp because it is prime and its reverse (749207946941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149649702947 - 2¹² = 149649698851 is a prime.

Together with 149649702949, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149649702947.

It is not a weakly prime, because it can be changed into another prime (149649702949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74824851473 + 74824851474.

It is an arithmetic number, because the mean of its divisors is an integer number (74824851474).

Almost surely, 2^149649702947 is an apocalyptic number.

149649702947 is a deficient number, since it is larger than the sum of its proper divisors (1).

149649702947 is an equidigital number, since it uses as much as digits as its factorization.

149649702947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27433728, while the sum is 62.

The spelling of 149649702947 in words is "one hundred forty-nine billion, six hundred forty-nine million, seven hundred two thousand, nine hundred forty-seven".