149630743 has 4 divisors (see below), whose sum is σ = 152083768. Its totient is φ = 147177720.

The previous prime is 149630711. The next prime is 149630783. The reversal of 149630743 is 347036941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 347036941 = 2399 ⋅144659.

It is a cyclic number.

It is not a de Polignac number, because 149630743 - 2⁵ = 149630711 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149630783) 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, 1226421 + ... + 1226542.

It is an arithmetic number, because the mean of its divisors is an integer number (38020942).

Almost surely, 2^149630743 is an apocalyptic number.

149630743 is a deficient number, since it is larger than the sum of its proper divisors (2453025).

149630743 is an equidigital number, since it uses as much as digits as its factorization.

149630743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453024.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 149630743 is about 12232.3645710876. The cubic root of 149630743 is about 530.8929328762.

The spelling of 149630743 in words is "one hundred forty-nine million, six hundred thirty thousand, seven hundred forty-three".