149174747 has 2 divisors, whose sum is σ = 149174748. Its totient is φ = 149174746.

The previous prime is 149174743. The next prime is 149174761. The reversal of 149174747 is 747471941.

It is a weak prime.

It is an emirp because it is prime and its reverse (747471941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149174747 - 2² = 149174743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149174698 and 149174707.

It is not a weakly prime, because it can be changed into another prime (149174741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74587373 + 74587374.

It is an arithmetic number, because the mean of its divisors is an integer number (74587374).

Almost surely, 2^149174747 is an apocalyptic number.

149174747 is a deficient number, since it is larger than the sum of its proper divisors (1).

149174747 is an equidigital number, since it uses as much as digits as its factorization.

149174747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 197568, while the sum is 44.

The square root of 149174747 is about 12213.7114342856. The cubic root of 149174747 is about 530.3530897436.

The spelling of 149174747 in words is "one hundred forty-nine million, one hundred seventy-four thousand, seven hundred forty-seven".