149711493 has 8 divisors (see below), whose sum is σ = 206054656. Its totient is φ = 96588000.

The previous prime is 149711491. The next prime is 149711519. The reversal of 149711493 is 394117941.

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

It is not a de Polignac number, because 149711493 - 2¹ = 149711491 is a prime.

It is a super-2 number, since 2×149711493² = 44827062272578098, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149711491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804808 + ... + 804993.

It is an arithmetic number, because the mean of its divisors is an integer number (25756832).

Almost surely, 2^149711493 is an apocalyptic number.

It is an amenable number.

149711493 is a deficient number, since it is larger than the sum of its proper divisors (56343163).

149711493 is a wasteful number, since it uses less digits than its factorization.

149711493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609835.

The product of its digits is 27216, while the sum is 39.

The square root of 149711493 is about 12235.6647959970. The cubic root of 149711493 is about 530.9884165851.

The spelling of 149711493 in words is "one hundred forty-nine million, seven hundred eleven thousand, four hundred ninety-three".